1380s

January–December

• February – Olaf II of Denmark also becomes Olaf IV of Norway, with his mother Margrete (Margaret) as regent. Iceland and the Faroe Islands, as parts of Norway, pass under the Danish crown.^[1]
• March 13 – The southern England town of Winchelsea in East Sussex is attacked and burned by an expeditionary force from France for a second time.^[2]
• May 31 – Grand Duke of Lithuania Jogaila signs the secret Treaty of DovydiÅ¡kės, with the Teutonic Knights. This sparks a civil war with his uncle Kęstutis.^[3]
• June 21 – Battle of Chioggia: the Venetian fleet defeats the Genoese.^[4]
• September 8 – Battle of Kulikovo: Russian forces under Grand Prince Dmitry Donskoy of Moscow resist a large invasion by the Blue Horde, Lithuania and Ryazan, stopping their advance.^[5][6]
• September 16 – Charles V of France is succeeded by his twelve-year-old son, Charles VI.^[7]
• October 2 – Caterina Visconti marries her first cousin, Gian Galeazzo Visconti, later Duke of Milan, at the Church of San Giovanni in Conca.^[8]
• November 3 – Charles VI of France, who succeeded his father (Charles V of France) in September, is crowned.^[9]

Date unknown

• Sir William Walworth, a member of the Fishmongers Guild, becomes Lord Mayor of London for the second time.
• Khan Tokhtamysh of the White Horde dethrones Mamai of the Blue Horde. The two hordes unite to form the Golden Horde.^[10]
• Karim Al-Makhdum arrives in Jolo, and builds a mosque.
• The Hongwu Emperor purges the chancellor of China, Hu Weiyong, and abolishes that office, as he imposes direct imperial rule over the six ministries of central government, for the Ming Empire.
• The last islands of Polynesia are discovered and inhabited.
• The Companhia das Naus is founded by King Ferdinand I of Portugal.^[11]
• The imposter Paul Palaiologos Tagaris, having been appointed Latin Patriarch of Constantinople by Pope Urban VI, takes up residence in his see at Chalcis.

January–December

• March 14 – Chioggia concludes an alliance with Zadar and Trogir against Venice, which becomes changed in 1412 in Å ibenik.
• June 12 – Peasants' Revolt: In England, rebels from Kent and Essex, led by Wat Tyler and Jack Straw, meet at Blackheath. There the rebels are encouraged by a sermon, by renegade priest John Ball.
• June 14 – Peasants' Revolt: Rebels destroy John of Gaunt's Savoy Palace in London and storm the Tower of London, beheading Simon Sudbury, who is both Archbishop of Canterbury and Lord Chancellor, and also Robert Hales, Lord High Treasurer. King Richard II of England (age 14) meets the leaders of the revolt and agrees to reforms such as fair rents and the abolition of serfdom.
• June 15 – Peasants' Revolt: During further negotiations, Wat Tyler is murdered by the King's entourage. Noble forces subsequently overpower the rebel army. The rebel leaders are eventually captured and executed and Richard II revokes his concessions. The revolt is discussed in John Gower's Vox Clamantis and Froissart's Chronicles.
• August – Kęstutis overthrows his nephew, Jogaila, as Grand Duke of Lithuania. Jogaila is allowed to remain as governor of eastern Lithuania. This marks the beginning of the Lithuanian Civil War (1381–84).

Date not known

• Due to Joanna I of Naples' support for Antipope Clement VII, Pope Urban VI bestows Naples upon Charles of Durazzo. With the help of the Hungarians, Charles advances on Naples and captures Joanna. James of Baux, the ruler of Taranto and the Latin Empire, claims the Principality of Achaea after Joanna's imprisonment.
• After a naval battle, Venice wins the three-year War of Chioggia against Genoa. The Genoans are permanently weakened by the conflict.
• Hajji I succeeds Alah-ad-Din Ali as Mamluk Sultan of Egypt. The Egyptian government continues to be controlled by rebel leader Barquq.
• Timur conquers east Persia, ending the rule of the Sarbadar dynasty.
• Sonam Drakpa deposes Drakpa Changchub as ruler of Tibet.
• The Ming dynasty of China annexes the areas of the old Kingdom of Dali, in modern-day Yunnan and Guizhou provinces, inhabited by the Miao and Yao peoples. Hundreds of thousands of Chinese (including military colonists) will migrate there from the rest of China.
• In Ming dynasty China, the lijia census registration system begun in 1371 is now universally imposed, during the reign of the Hongwu Emperor. The census counts 59,873,305 people living in China in this year. This depicts a drastic drop in population since the Song dynasty, which counted 100 million people at its height in the early 12th century. A modern historian states that the Ming census is inaccurate, as China at around this time has at least 65,000,000 inhabitants, if not 75,000,000.^[12]

January–December

• January 20 – Princess Anne of Bohemia, a daughter of the late Charles IV, Holy Roman Emperor, becomes the Queen Consort of England by marrying King Richard II; the marriage produces no heirs before her death in 1395.
• May 12 – Charles of Durazzo executes the imprisoned Joanna I of Naples, and succeeds her as Charles III of Naples.
• May 21 – John Wycliffe's teachings are condemned by the Synod of London, which becomes known as the "Earthquake Synod", after its meetings are disrupted by an earthquake.^[13]
• August – The iconic painting the Black Madonna of Częstochowa is brought from Jerusalem, to the Jasna Góra Monastery in Poland.
• September – Following the death of Louis I of Hungary and Poland:
  • Louis' daughter Mary is crowned the "King" of Hungary.
  • The Poles, who do not wish to be ruled by Mary's fiancee, the future Holy Roman Emperor Sigismund, choose Mary's younger sister, Jadwiga, to become ruler of Poland. After two years of negotiations, Jadwiga is eventually crowned "King" in 1384.
• September 30 – The inhabitants of Trieste (now in northern Italy) donate their city to Duke Leopold III of Austria.
• October – James I succeeds his nephew, Peter II, as King of Cyprus.
• October 20 – Winchester College is founded in England.
• November 27 – Battle of Roosebeke: A French army under Louis II, Count of Flanders defeats the Flemings, led by Philip van Artevelde.
• November 27 – After a five-year revolt, Barquq deposes Hajji II as Mamluk Sultan of Egypt, marking the end of the Bahri Dynasty and Qalawunid Dynasty, and the start of the Burji Dynasty.^[14]

Date unknown

Ming dynasty conquest of Yunnan

• Khan Tokhtamysh of the Golden Horde overruns Muscovy, as punishment for Grand Prince Dmitry Donskoy's resistance to Khan Mamai of the Blue Horde in the 1370s. Dmitry Donskoy pledges his loyalty to Tokhtamysh, and is allowed to remain as ruler of Moscow and Vladimir.
• The Ottomans take Sofia from the Bulgarians.
• Ibrahim I is selected to succeed Husheng, as Shah of Shirvan (now Azerbaijan).
• Kęstutis, the Grand Duke of Lithuania, is taken prisoner by former Grand Duke Jogaila, whilst meeting him to hold negotiations. Kęstutis is subsequently murdered, and Jogaila regains the rule of Lithuania.
• Ahmed deposes his brother, Hussain, as ruler of the Jalayirid Dynasty in western Persia.
• Rana Lakha succeeds Rana Kshetra Singh, as ruler of Mewar (now part of western India).
• Conrad Zöllner von Rothenstein succeeds Winrich von Kniprode, as Grand Master of the Teutonic Knights.
• BalÅ¡a II of Zeta conquers Albania.
• Dawit I succeeds his brother Newaya Maryam, as Emperor of Ethiopia.
• Abraham bar Garib becomes Syriac Orthodox Patriarch of Mardin.^[15]

January–December

• May 17 – King John I of Castile and Leon marries Beatrice of Portugal.
• July 7 – James of Baux, ruler of Taranto and Achaea, and last titular Latin Emperor, dies childless.^[16] As a result:
  • Charles III of Naples becomes ruler of Achaea (modern-day southern Greece).
  • Otto, Duke of Brunswick-Grubenhagen, the widower of Joanna I of Naples, becomes ruler of Taranto (eastern Italy).
  • Louis I, Duke of Anjou inherits the claim to the Latin Empire (western Turkey), but never uses the title of Emperor.
• October 22 – King Fernando I of Portugal dies, and is succeeded by his daughter, Beatrice of Portugal. A period of civil war and anarchy, known as the 1383–85 Crisis, begins in Portugal, due to Beatrice being married to King John I of Castile and Leon.

Date unknown

• The Teutonic Knights recommence war against pagan Lithuania.
• Dan I succeeds his father Radu as Prince of Wallachia. He is the ancestor of the House of Dăneşti.
• Rao Chanda succeeds Rao Biram Dev as Rathore ruler of Marwar (in modern-day western India).
• Löwenbräu beer is first brewed.
• Completion of the original inner courtyard of Farleigh Hungerford Castle in Somersetshire, England.
• The Wat Phra That Doi Suthep Temple is built in modern-day Thailand, by King Kuena of Lanna.
• Construction of the Bastille fortress is completed in Paris, France.

January–March

• January 2 – (10th waxing of Tabodwe, 745 ME) King Binnya U of Burma's Hanthawaddy kingdom is killed in a rebellion at the capital, Bago. His 16-year-old son, Pasoom-Paing-Cek, is installed by the rebels as King Razadarit.^[17]
• January 26 – England and France agree to a truce and ceasfire in the ongoing Revolt of Ghent. The Kingdom of Scotland goes to war to retake Scottish territory occupied by the English Army.^[18]
• January 30 – Margaret III becomes the Countess of Flanders upon the death of her 53-year-old father, Count Louis II.^[19] Margaret and her husband Philip the Bold, Duke of Burgundy, become co-rulers of both Flanders and Burgundy.
• February 4 – – Scottish forces make an attack against English occupation forces in Scotland and recapture Lochmaben Castle and Teviotdale.^[20]
• February 7 – Nicholas Brembre, Lord Mayor of London after defeating John Northampton's bid for re-election, arranges to have Northampton arrested on charges of sedition.
• February 11 – In protest of former mayor Northampton's arrest in London, local businessman and shoe manufacturer John Constantine incites other business owners to close their shops and to disrupt commerce. Constantine is then arrested and beheaded at Cheapside for leading an insurrection, and his severed head is placed on the Newgate entrance to the London Wall.^[21]
• March 3 – King Richard II of England summons the members of the House of Commons and the House of Lords to assemble at Salisbury on April 29.

April–June

• April 29 – The Parliament of England opens a four-week session at Salisbury at the palace of the Bishop of Salisbury. Sir James Pickering is elected as Speaker of the House of Commons for the third consecutive time of his career.
• May 27 – The English Parliament adjourns and King Richard II gives royal assent to laws passed during the session.
• May 29 – The army of the Crown of Castile army begins the siege of Lisbon, capital of the Kingdom of Portugal.ref>Miguel Duarte, Luís, Batalhas da História de Portugal – Guerra pela Independência, Academia Portuguesa de História, Lisboa, 2006, Vol. IV, pp. 88-92</ref>^[22]
• June 15 – Antoniotto I Adorno is elected as Doge of the Republic of Genoa following the death of the Doge Leonardo Montaldo from bubonic plague the day before.^[23] Adorno serves as the Republic's chief executive until 1390.

July–December

• August 16 – The Hongwu Emperor of Ming China hears a case of a couple who tore paper money notes, while fighting over them. Under the law, this is considered to be destroying stamped government documents, which is to be punished by a caning with a bamboo rod of 100 strokes. However, the Emperor decides to pardon them, on the grounds that it was unintentional.
• September 3 – The siege of Lisbon by the Castilian Army ends as the Portuguese defenders protect the capital of the kingdom of Portugal.
• September 28 – King Richard II summons the English Parliament to meet on Novembeer 12.
• November 12 – The 12th parliament of King Richard II assembles and elects James Pickering as Speaker of the House for the fourth consecutive time.
• November 16 – At the age of 10, Jadwiga is crowned "King" of Poland in Kraków following the 1382 death of her father, King Louis.^[24]
• December 14 – The second assembly in 1384 of the English Parliament is adjourned.
• December 25 – Use of the Spanish era dating system in the Crown of Castile is suppressed.

January–March

• January 11 – After learning that several of his cardinals had been debating whether to depose him on grounds that he is insane, Pope Urban VI orders the arrest of all of the cardinals within his reach. Giovanni da Amelia, Gentile di Sangro, Adam Eston, Ludovico Donato, Bartolomeo da Cogorno, and Marino del Giudice are all arrested and imprisoned and tortured at the castle of Nocera.^[26] Except for Eston, the cardinals arrested are put to death in Genoa by the end of 1386.^[27]
• February 3 – (2 Muharram 787 AH) The madrasa (a religious school) of the Emir of Artuqid Empire, Majd al-Din Isa Al-Zahir, is dedicated and the date is placed on an inscription on the wall.^[28] The building is now a historic landmark in the city of Mardin, now located in Turkey.
• February 14 – John of Gaunt, Duke of Lancaster, son of the late King Edwward III of England and uncle of King Richard II, flees London after learning during a joust that he has been targeted for assassination by the King's advisors Thomas Mowbray, 1st Duke of Norfolk and Robert de Vere, 9th Earl of Oxford; and John de Montacute, Earl of Salisbury ^[29][30]
• February – Bugaya becomes the new Sultan of Kano in what is now northern Nigeria, upon the death of his brother Yaji I.^[31]
• March 13 – Officials in the Kingdom of Scotland discover that 700 pounds sterling of bullion has been taken from the cusstoms collectors of Edinburgh by John Stewart, the Earl of Carrick, who diverted the funds while acting as Guardian of Scotland.^[32]
• March 22 – From the port of Sluis (now in the Netherlands), the Kingdom of France dispatches a fleet of ships, carrying an army of 1,315 soldiers, 300 crossbowmen and 200 assistants, to aid the Kingdom of Scotland in defense of an invasion by the Kingdom of England.^[33] The fleet arrives at the Scottish port of Leith, near Scotland's capital, Edinburgh, on March 25.

April–June

• April 6 – At Coimbra, João, Master of Aviz, son of the late King Pedro I of Portugal, is declared by the Cortes of Coimbra to be the new King of Portugal.^[34]
• May 6 – Gian Galeazzo Visconti leads a coup d'etat against his uncle, Bernabò Visconti, Lord of Milan and begins conquests to transform Milan into a Duchy, with himself as the Duke of Milan.^[35]
• May 14 – The two-day Battle of Sluys concludes on the North Sea off of the coast of the Netherlands as England's Royal Navy, led by the Admiral, Thomas Percy, 1st Earl of Worcester attempts to blockade the Flemish port of Sluis and more than 100 ships stationed there. Jean de Vienne, Admiral of France, makes a successful counter-attack and the Royal Navy ships sail back to England to defend London.^[36]
• May 29 – The Battle of Trancoso is fought between the Kingdom of Portugal and the Crown of Castile after a Castilian army pillages and burns the city of Viseu. As the Castilians are marching back with their plundered loot and prisoners, they are met by the Portuguese Army, which kills more than 400 soldiers along with six of the seven Castilian officers, then recovers the stolen treasure and releases all of the Portuguese citizens taken prisoner.^[37]
• June 10 – English invasion of Scotland (1385): Preparing to lead invade Scotland as soon as the truce between England and Scotland expires on July 15, King Richard II of England assembles an army at Nottingham.^[38]

July–September

• July 8 – English invasion of Scotland (1385): King Robert II of Scotland sends two armies of Scottish soldiers and French mercenaries south from Edinburgh and raids the English county of Northumberland.^[38]
• July 16 – King Richard II directs suppliers in Durham, Yorkshire, Northumberland, Cumberland and Westmorland to be prepared to supply food to the English Army, to be purchased "at a reasonable price for ready payment."^[39]
• July 17 – Charles VI of France marries Isabeau of Bavaria; the wedding is celebrated with France's first court ball.
• July 21 – King Juan of Castile asserts in his will that he is the King of Portugal by virtue of his marriage in 1383 to Queen Beatriz of Portugal^[40]
• August 6 –
  • English invasion of Scotland (1385): After setting off from Berwick-upon-Tweed, the English Army invades Scotland.^[41] The English soldiers quickly run out of food, since to supply lines have been created and the residents of the border towns in Scotland have fled, taking their food with them.^[38]
  • Edmund of Langley is elevated to become the first Duke of York in England.
• August 11 – English invasion of Scotland (1385): The English Army reaches Edinburgh, capital of Scotland, and finds it deserted as its civilian residents have fled and the Scottish and French soldiers have retreated to Ettrick Forest.^[38] The frustrated English soldiers burn and loot the city.^[42]|
• August 14
  • Battle of Aljubarrota: John of Aviz defeats John I of Castile in the decisive battle of the 1383–85 Crisis in Portugal. John of Aviz is crowned King John I of Portugal, ending Queen Beatrice's rule, and Portugal's independence from the Kingdom of Castile is secured.
  • The Union of Krewo establishes the Jagiellonian dynasty in Poland and Lithuania, through the proposed marriage of Queen regnant Jadwiga of Poland and Grand Duke Jogaila of Lithuania, and sees the acceptance of Roman Catholicism by the Lithuanian elite, and an end to the Greater Poland Civil War.
• August 15 – English invasion of Scotland (1385): With England's Army having left its borders undefended, Scottish and French troops invade England and plunder Cumberland in retaliation for the burning of Edinburgh.^[38]
• August 17 – English invasion of Scotland (1385): Having accomplished nothing but destruction of property, the English Army begins its withdrawal from Scotland and returns to England.^[43]
• August 23 – In celebration of the marriage of Wilhelm the Courteous, Duke of Austria, to Jadwiga, Queen of Poland, the leaders of the city of Krakow grant amenesty to the prisoners in the city jail.^[44]
• August 31 – King Richard II of England begins an invasion of Scotland. The English burn Holyrood and Edinburgh, but return home without a decisive battle.^[45]
• September 7 – Scottish and French troops unsuccesfully try to besiege the walled city of Carlisle in England,^[41] but Sir Henry Percy, nicknamed "Hotspur" breaks the siege and the attackers withdraw to Scotland, ending the war between the two kingdoms.^[46]
• September 18 – Battle of Savra: Serbian forces under BalÅ¡a II and IvaniÅ¡ Mrnjavčević are defeated by Ottoman commander Hayreddin Pasha, near Berat.

October–December

• October 15 – Battle of Valverde: The armies of Portugal defeat Castile.
• November 1 – Sigismund of Luxembourg, Margrave of Brandenburg and son of the late Charles IV, Holy Roman Emperor, enforces a 1373 agreement of betrothal and marries Mary, Queen of Hungary, citing an agreement that had been made by King Louis I of Hungary.
• December 31 – King Carlo III, ruler of the Kingdom of Naples, is crowned as King Károly II of Hungary by the Archbishop Demeter of Esztergom at Székesfehérvár after a group of Hungarian nobles helps him overthrow Queen Maria.

Date unknown

• Tokhtamysh of the Golden Horde conquers parts of the Jalayirid Sultanate in western Persia, causing a rift between himself and Timur of the Timurid Empire, who had also wanted to conquer Persia.
• Olav IV of Norway is elected as titular King of Sweden, in opposition to the unpopular King Albert.
• The Hongwu Emperor of China's Ming dynasty relents after eighteen tribute missions over the previous eight years, and agrees to invest King U of Goryeo.
• Construction is completed on
  • Castello Estense in Ferrara (now in Italy)
  • Bodiam Castle (East Sussex, England)

January–March

• January 6 – Officials from the Swiss Canton of Lucerne, arrive in the village of Sempach, at the time under control of Austria and the Habsburg family, and offer Swiss citizenship and rights. Lucerne's representatives enter into similar pacts with other Austrian-controlled towns, including Meienberg, and bring with them soldiers from the Swiss Confederacy.^[47]
• January 11 – Union of Krewo: A delegation of Poland's nobles visits the Grand Duke Jogaila of Lithuania at Valkaviskas (now Vawkavysk in Belarus and informs him that they will elect him as the new King of Poland on the condition that he convert from Lithuania's polytheistic religion to Christianity, and that he marry the Queen of Jadwiga of Poland. Jogaila agrees to the terms. ^[48]
• January 14 – The Austrian garrison at Meienberg responds to the overtures from the Swiss canton of Lucerne and kills over 140 of the Swiss Confederacy troops, starting a war between the two nations.^[47]
• February 1 – Meeting at Lublin, the nobles of Poland elect Grand Duke Jogaila as King of Poland.^[49]
• February 13 – The Republic of Venice takes control of the island of Corfu.^[50]
• February 15 – Grand Duke Jogaila of Lithuania is baptized by the Roman Catholic Bishop Bodzanta of Gniezno at Wawel Cathedral, Kraków after converting to Christianity, and takes the name Wladyslaw II.^[49]
• February 18 – Grand Duke Jogaila of Lithuania marries Queen Jadwiga of Poland, unifying the two nations.
• February 24 – Elizabeth of Bosnia, the mother of the overthrown Queen Mary of Hungary and Croatia, arranges the assassination of Charles III of Naples, the ruler of Hungary, Naples, Achaea and Croatia, with the result that Mary is reinstated as Queen of Hungary and Croatia; Charles' son, Ladislaus, becomes King of Naples; and a period of interregnum begins in Achaea, lasting until 1396. The rule of Achaea is sought by numerous pretenders, none of whom can be considered to have reigned.
• March 4 – Jogaila, Grand Duke of Lithuania is crowned Władysław II Jagiełło, King of Poland, beginning the Jagiellonian dynasty.

April–June

• April 29 – The Lithuanian Army, led by Skirgaila, conquers the Principality of Smolensk in the Battle of the Vikhra River.Prince Sviatoslav IV, who had supported a rebellion by Grand Duke Jolaila's younger brother Andrei of Polotsk, is killed in combat and Smolensk becomes a vassal state of Lithuania.^[51]
• May 9 – King John I of Portugal and King Richard II of England ratify the Treaty of Windsor.^[52]
• June 9 – Queen Elizabeth of Hungary pledges to assist King Wladyslaw II of Poland against his enemies, the Teutonic Knights, who question the legitimacy of the King's marriage to Queen Jadigwa.^[53]
• June 26 – Heidelberg University is opened by Ruprecht I, Count Palatine of the Rhine seven months after he received permission from Pope Urban V to create a school studium generale. Formal establishment will take place on October 19.^[54]

July–September

• July 9 –
  • Battle of Sempach: Soldiers from cantons of the Old Swiss Confederacy defeat the Austrian Habsburg Army in a battle that leads to the unification of the cantons into the nation of Switzerland.
  • John of Gaunt, Duke of Lancaster and oldest surviving son of the late King Edward II of England, departs from England with 5,000 men and a fleet of English and Portuguese ships to make good his claim to the throne of Castile. John, whose nephew became King Richard II upon Edward's death, claims the Castilian throne by right of his marriage to Constanza of Castile in 1371.^[55]
• July 25 – Elizabeth of Bosnia, mother of Queen Jadwiga of Poland is kidnapped by Croatian rebels at Gorjani, along with Jadwiga's sister, Queen consort Mary of Hungary Mary, when they are ambushed by John Horvat and his men while traviling to Dakovo.^[56] Nicholas I Garai, who had accompanied Elizabeth and Mary, is murdered and his severed head is sent by the rebels to Margaret of Durazzo, the former Queen consort of Hungary and Naples, as proof that the murderers of her husband King Charles III, have been captured.^[57]
• August 8 – King Richard II of England summons the members of the House of Commons and the House of Lords to assemble at Westminster Abbey on October 1 for his 14th Parliament, dubbed by historians as the "Wonderful Parliament".^[58] Although the King's purpose is to secure funding to defend against an imminent invasion from France, the parliament members begin plans to reform the unpopular king's government.
• August 17 – Karl Thopia, Prince of Albania, enters into an alliance with the Republic of Venice. Albania agrees to participate in all wars of the Republic or to pay auxiliary funds and supply grain, as well as to protect Venetian buyers in Albania. [19] In return, Venice supplies a galley to Albania and protect Albania's coast from the Ottoman Empire.^[59]
• September 23 – Dan I of Wallachia (modern-day southern Romania) is killed in battle against the Bulgarians and is succeeded by Mircea the Elder, one of the greatest rulers of Wallachia.

October–December

• October 1 – The "Wonderful Parliament" is opened at Westminster by King Richard's Chancellor Michael de la Pole, while King Richard declines to attend after failing to call off his decision to summon the members.^[58]
• October 18 – Heidelberg University (Ruprecht-Karls-Universität Heidelberg), the oldest in Germany, is founded at the behest of Rupert I, Elector Palatine, by charter of Pope Urban VI.
• November 21 – The Mongol conqueror Timur, called "Tamerlane" in the west, captures and sacks the Georgian capital of Tbilisi, taking King Bagrat V prisoner.
• December 24 – Al-Burhan Ahmad al-Zahiri, (Burhan), Khalid al-Himsi, and Amin ad-Din Ibn al-Najib, arrested in September on charges of conspiring to assassinate the Egyptian Sultan Barquq, are brought to Cairo to face trial.^[60]

Date unknown

• Abu al-Abbas is reinstated as ruler of the Marinid dynasty in modern-day Morocco.
• Construction begins on the Brancacci Chapel in Florence.
• Rozhdestvensky monastery is built in Muscovy.

January–March

• January 1 – Charles III ascends to the throne of Navarre, after the death of his father, Charles II.^[61]
• January 5 – John I succeeds his father, Peter IV, as King of Aragon and Valencia, and forms an alliance with France and Castile.
• January 16 – Elizabeta Kotromanic, the regent of Hungary for her daughter, Queen Mary, is murdered in prison by Croatian rebels.^[62]
• March 11 – Battle of Castagnaro: Padua, led by John Hawkwood, is victorious over Giovanni Ordelaffi of Verona.
• March 25– The Battle of Margate, a naval battle off the coast of England at Margate, ends with the England navy, commanded by the Earl of Arundel, victorious over a combined fleet of shipsf rom the Kingdom of France, the Crown of Castile and the County of Flanders.^[63]

April–June

• April 12– Admiral Arundel of the English Navy brings 68 captured ships from Margate battle to the port of Orwell.^[63]
• May 1– With a larger squadron of almost 60 ships, Arundel departs from Orwell and sails to the British-controlled French port of Brest, at the time under siege by Jean de Montfort.^[63]
• May 17– At Caffa, one of the Balkan colonies of the Republic of Genoa, the Genoese Army thwarts an attack at Solkhat (Sorcati) by the Tatars.^[64]
• May 28– Anticipating a war with Burma, China's Emperor orders the troops at his forts on the Burmese border to increase the height of their walls and to begin making gunpowder to increase their supply.^[65]
• June 2 – John Holland, a maternal half-brother of Richard II of England, is created Earl of Huntingdon.
• June 4 – Queen Mary of Hungary is rescued from imprisonment after being held captive by Croatian rebels.

July–September

• July 7 – A Mongol Army unit, led by Naghachu, ambushes and massacres a Chinese Army division led by Chen Yong (陳鏞), Marquis of Linjiang, who is killed in the attack.^[66]
• July 14 – The Chinese Army commander, General Feng Sheng, leads troops across the Liao River defeats Naghachu's Mongol troops and takes Naghachu as a prisoner of war.^[66]
• August 22 – Olaf, King of Norway and Denmark and claimant to the throne of Sweden, dies. The vacant thrones come under the regency of his mother Margaret I of Denmark, who will soon become queen in her own right.
• September 8 – General Feng Sheng is removed from command of the Chinese Army by Emperor Zhu Yuanzhang^[66] and replaced by General Lan Yu.^[67]
• September 27 – Petru of Moldavia pays homage to Władysław II Jagiełło, making Moldavia a Polish fief (which it will remain until 1497).

October–December

• October 19 – The Scaliger rule over the independent Lordship of Verona comes to an end after 125 years when the dictator Antonio I della Scala is forced by the nobles of the Lordship of Milan, led by Gian Galeazzo Visconti, to flee the city.^[68]
• November 17 – The three rebel Lords Appellant— Thomas of Woodstock, 1st Duke of Gloucester, Richard FitzAlan, 11th Earl of Arundel and Thomas de Beauchamp, 12th Earl of Warwick arrive at King Richard's palace at Westminster after traveling with 300 men on horseback to confront the King, and effectively take control of the government of England. The Lords demand that advisers Neville, Pole, De Vere, Tresilian and Brembre be held in custody until a trial can take place, and the King agrees after they threaten to take the government by force.^[69]
• November 19 – By order of the Lords Appellant, Sir Robert Tresilian, Chief Justice of the King's Bench of England, is arrested along with other nobles loyal to King Richard II, and charged with treason for malfeasance in office, with trial to take place four months later at Parliament in February.^[70]
• November – The Emperor Zhu Yuanzhang of China directs General Lan Yu to attack the Mongol forces led by Tögüs Temür, whom the Emperor Zhu had deposed. The confrontation between Lan Yu and Tögüs Temür will culminate six months later at the Battle of Buir Lake, 500 miles (800 km) north of Beijing.
• December 19 – At the Battle of Radcot Bridge in England, forces loyal to King Richard II are defeated by the Lords Appellant, a group of three rebellious barons—. King Richard is taken prisoner, and not freed until he agrees to dismiss all the councillors in his court.^[71] Richard continues as the nominal King of England, with the Lords Appellant administering the kingdom.

Date unknown

• Timur conquers the Muzaffarid Empire in central Persia, and appoints three puppet rulers.
• Khan Tokhtamysh of the Golden Horde invades the Timurid Empire, but has to withdraw soon after, due to heavy snow.
• Maghan II succeeds his brother, Musa II, as Mansa of the Mali Empire

January–March

• January 24 – Eleanor of Arborea, regent for her son Marianus V of the independent Judicate of Arborea, on the island of Sardinia, signs a peace agreement with the Crown of Aragon in Spain, ending a war between the two nations.^[72]
• February 2 – Queen Margaret I of Denmark is proclaimed the Queen of Norway after the death of her son, Olav IV Haakonsson.
• February 3 – The five Lords Appellant, regents for King Richard II open a new session of the House of Commons and the House of Lords with the goal of exposing King Richard's attempt to make peace with France in order to drive them from power. After hearing the case of the Lords Appellant, the Parliament convicts five of King Richard's associates— Lord Chancellor Michael de la Pole; London's former Lord Mayor Nicholas Brembre; Duke of Ireland Robert de Vere; Archbishop of York Alexander Neville; and Chief Justice Robert Tresilian— guilty of ""living in vice, deluding the said king" and embracing the mammon of iniquity for themselves".^[73]
• February 19 – Chief Justice Robert Tresilian, one of the five advisors to King Richard convicted of treason in absentia, is discovered hiding in sanctuary at Westminster and is dragged by a mob into the Parliament. Because he was already convicted, Tresilian is hanged in publicon the same day.^[74]
• February 20 – London's Lord Mayor Bembre is hanged in public at Tyburn after having been imprisoned in the Tower of London.^[75]
• March 12 – Pope Urban VI issues a papal bull permitting the Lithuanian capital, Vilnius, to establish a cathedral, acknowledging that pagan objects have been discarded and that Christianity has come to the Baltic nation.^[76]

April–June

• April 9 – At the Battle of Näfels, the Canton of Glarus, in alliance with the Old Swiss Confederacy, decisively defeats the Duchy of Austria and the Habsburgs, despite being outnumbered 16 to one.^[77]
• May 18 –
  • At the Battle of Buyur Lake, an invasion force from Ming dynasty China, under General Lan Yu defeats a large Mongolian army led by Uskhal Khan Tögüs Temür, and captures 100 members of the Northern Yuan Dynasty. Uskhal Khan will be killed later while trying to escape. The invading Chinese army destroys Karakorum, the capital of the Mongol Empire.^[78]
  • Cozia Monastery is consecrated in the Principality Wallachia by Prince Mircea the Elder in the town of Călimănești (now in Romania)
• May 21 – Permission to create the University of Cologne is granted to the city of Köln by Pope Urban VI. By the 21st century it will be the largest university in Germany.
• May 22 – Wihwado Retreat: In Korea, General Yi Song-gye disregards the orders of the Emperor U of Goryeo to attack China, leads his troops away from Wihwa Island, and leads an attack on the Korean capital, Kaesong.
• June 3 – General Yi Song-gye overthrows the Emperor U of Goryeo and installs U's son, Chang of Goryeo, as the new Emperor.
• June 4 – The Merciless Parliament ends its session after four months spent primarily in trying officials for treason and further restricting the authority of King Richard II.^[75]

July–September

• July 8 –John of Gaunt, the uncle of Richard II of England, makes peace with Castile and gives up his claim to the Castilian throne, by allowing his daughter Catherine of Lancaster to marry Prince Henry, the eldest son of John I of Castile.
• August 5 – Battle of Otterburn: A Scottish army, led by James Douglas, defeats an English army, capturing their leader, Harry Hotspur. Douglas is killed during the battle.
• August 27 – Battle of Bileća: The Bosnians check the Ottoman advance.
• September 17 –The title of Prince of Asturias is created for the heir to the Spanish Crown, initially by King Juan of Castile for his son Enrique.
• September 9 – The 16th Parliament of King Richard II, the first since the adjournment of the Merciless Parliament, opens at the Barnwell Priory in Cambridge for a five-week session, during which the members bring their complaints against the Lords Appellant.^[79]
• September 20 –Ghiyas-ud-Din Tughluq II succeeds Firuz Shah Tughlaq as Sultan of Delhi.

October–December

• October 17 – The Cambridge Parliament adjourns.^[79]
• November 18 – Uskhal Khan Tögüs Temür, the Emperor of the Northern Yuan dynasty in Mongolia, is killed by the Ming Chinese General Jorightu Khan Yesüder , who becomes the new Emperor.^[80]
• December 3 –Upon reaching the age of 20, Charles VI of France takes complete control of the government, ending the regency of his uncle, Philip the Bold.
• December 12 – Maria of Enghien sells the Lordship of Argos and Nauplia to the Republic of Venice.
• December 27 – At Thăng Long, Tran Ngung overthrows and kills Tran Hien as Emperor of Dai Viet (now Vietnam).

Date unknown

• Mircea I of Wallachia takes control of the region of Dobruja, thus preventing its occupation by the Ottomans.
• Petru of Moldavia receives Pokuttya, as a pawn for a loan to the Polish king.
• The revision of Wycliffe's Bible is completed by John Purvey, and Wyclif's followers, known as the Lollards, begin to be persecuted in England.
• September 17 –The title of Prince of Asturias is created for the heir to the Spanish Crown, initially by King Juan of Castile for his son Enrique.
• Ramesuan is reinstated as King of Ayutthaya (modern-day southern Thailand), after dethroning and executing 17-year-old King Thong Lan.
• Goryeo Revolution: General Yi Seong-gye begins a four year revolution in Goryeo (modern-day Korea), after being ordered by King U of Goryeo to attack the superior Chinese army. King U is forced from power, and replaced by his son Chang.
• Omar I is succeeded by Sa'id, as King of the Kanem-Bornu Empire (modern-day east Chad and Nigeria). Sa'id is succeeded in the same year by Kade Alunu. Omar and Sa'id are both killed by Bilala invaders from the west.
• Ljubostinja Monastery is built in Serbia.

January–March

• January 19 – In Ming dynasty China, General Lan Yu is rewarded by the Emperor Zhu Chongba of the Hongwu era for his victory over Mongol invaders in 1388. Lan Yu is given the title Duke of Liang, with rule over what is now the Gansu province.^[81]
• January 24 – The University of Cologne (Universität zu Köln) begins operations ^[82] and continues for more than 400 years before closing in 1798. It will be re-established in 1918.
• February 24 – Queen Margaret of Norway and Denmark defeats Albert, King of Sweden in battle and becomes ruler of all three kingdoms. Albert is deposed from the Swedish throne and taken prisoner.
• March 14 – The unpopular Sultan Tughluq Khan of Delhi is murdered and succeeded by his brother, Abu Bakr Shah. The assassins, including Abu Bakr, kill the Sultan Tughluq and his vizier, Jahan Khan.^[83]

April–June

• April 1 – Following the Battle of Sempach, a seven-year peace agreement is concluded between the Duchy of Austria and the Old Swiss Confederacy.^[84]
• April 19 – Lithuania, the last state in Europe to be Christianized, is given full recognition by Pope Urban VI as a Roman Catholic state.^[85]
• May 3 – Richard II takes control of England, away from the Lords Appellant.
• May 19 – Vasili I becomes Grand Prince of Moscow after the death of his father, Dmitry Donskoy.
• May 21 – Sir John Roches is made Admiral of the North and Western Fleets of the English Navy by King Richard II, but serves for only a month, until June 22.^[86]
• June 2 – Al-Salih Hajji becomes the Mamluk Sultan of Egypt and Syria a second time, replacing the Sultan Sayf ad-Din Barquq after having previously reigned from 1381 to 1382.^[87] Al-Salih rules until 1 February 1390, when he is overthrown by Barquq.
• June 11 – The Hättebröder, a group of German-speaking burghers during the reign of the German Albrecht as King of Sweden, arrest and imprison the Swedish mayor of Stockholm, Bertil Brun, and two other city officials, whom they hold for ransom.^[88] Brun and the other two officials become victims two weeks later of the Käpplinge murders.
• June 15 – At the Battle of Kosovo, The Ottoman Empire and the Serbs fight an inconclusive clash, with both sides suffering heavy losses. Both Sultan Murad I and Serbian Prince Lazar Hrebeljanovic are killed in the battle.
• June 16 – The day after the Battle of Kosovo, Bayezid I succeeds his father Murad I as Ottoman Sultan, and Stefan Lazarević succeeds his father Lazar as ruler of Serbia.^[89]
• June 17 – On the night of the Feast of Corpus Christi, the Käpplinge murders (Käpplingemorden) take place in Sweden at Käpplingeholmen when 76 Swedish men are taken prisoner, convicted of treason, then burned alive in a barn.^[90]

July–September

• July 12 – English poet Geoffrey Chaucer, who has recently started writing of the works that will be assembled in The Canterbury Tales, is given a job to supplement his income as a writer when he is appointed by King Richard II of England as Clerk of the King's Works, overseer of the construction of royally-sponsored buildings.^[91]
• July 18 – The Hundred Years' War is temporarily halted as the Truce of Leulinghem goes into effect after having been singed in June by the Kingdom of England and Kingdom of France. The peace will last for 13 years.^[92]
• August 11 – Spyridon of Serbia, Patriarch of the Serbian Orthodox Church since 1380, dies and the former Patriarch, Jefrem, takes his place.^[93]
• August 23 – Isabeau of Bavaria, who married King Charles V of France on July 17, 1385, is crowned as Queen consort of France.(1978).^[94]
• August 24 – Qutbu'd-Din Shah, the Sultan of Kashmir, dies after a reign of 16 years and is succeeded by his 9-year-old son, Sikandar Shah Miri.^[95] Sikandar's mother, Queen Subhata, serves as the regent of Kashmir during his minority.
• September 8 – Erik of Pomerania becomes the new King of Norway with the regnal name of Erik III after being elected at Trondheim by the Ting, the kingdom's assembly.^[96]
• September 10 – In Greece, Andronikos Asen Zaccaria, chief law enforcement officer of the Principality of Achaea, ruled by the Republic of Genoa, imprisons the Duke of Athens, Nerio Acciaioli, after the Navarrese commander Pedro de San Superano had invited Acciaioli to discuss peace.^[97]
• September 22 – The Republic of Siena and the Duchy of Milan enter into a 10-year alliance.^[98]
• September 30 – King Charles VI of France and the Bishop Liébauld de Cousans of Verdun sign a treaty granting the Roman Catholic Church dominion over the city of Verdun. The treaty is approved five months later by Pope Clement VI on February 13, 1390.^[99]

October –December

• October 25 – The papal conclave to elect a new Pope opens at the Apostolic Palace in Rome with 13 cardinals, all of whom had been selected by Pope Urban during the years from 1378 to 1384.^[100]The three absentees (from France, England and Hungary) had also been elevated to the college of cardinals by Pope Urban.
• November 1 – The Antipope John XXIII, reigning from Avignon, crowns Louis II of Anjou as King of Naples, although the underage King Ladislaus has been recognized as the rightful monarch by the late Pope Urban VI of Rome.^[101] Louis II will move to Naples on August 6, 1390, while Ladislaus flees, but since his troops cannot occupy the entire Neapolitan kingdom, Louis is only recognized in the French-occupied areas of Naples.^[102]
• November 2 – Pietro Tomacelli Cybo of Naples is elected as the successor of the late Pope Urban VI, and takes the name Pope Boniface IX.^[100]
• December 31 – In the Goryeo Revolution in Korea, 9-year-old King Wang Chang of Goryeo, and his father, the former King Wang U are assassinated by Prince Gongyang. The ten-year-old Chang and his predecessor, U, are both assassinated later in the year.

Date unknown

• Mircea I of Wallachia and Polish king Władysław II Jagiełło sign their first treaty, to protect their countries against Ottoman expansion.
• Hadji II is restored as Mamluk Sultan of Egypt, after overthrowing Sultan Barquq.
• Wikramawardhana succeeds Hayam Wuruk, as ruler of the Majapahit Empire.
• Biri II succeeds Kade Alunu as King of the Kanem-Bornu Empire (now eastern Chad and Nigeria), and the Empire loses its land in present-day Chad to the Bilala.
• Sandaki overthrows Magha II, as Mansa of the Mali Empire.
• Abd ar-Rahmân II succeeds Musa II as ruler of the Ziyanid Dynasty, in present-day western Algeria.
• Abu Tashufin II succeeds his nephew, Abu Hammu II, as ruler of the Abdalwadid Dynasty in present-day eastern Algeria.
• Carmo Convent is built in Lisbon, Portugal.