12th century in Norway
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1101â1109
- 1103
- 24 August - Death of Magnus Barefoot, King (born 1073).
- 1107
- The Norwegian Crusade sailed from Norway.
1110s
- 1115
- 22 December â Death of Olaf Magnusson of Norway, King (born c.â1099).[1]
1120s

- 1123
- Kalmare ledung, a Crusade led by King Sigurd to Christianize the Swedish provinces of SmÃ¥land and Ãland.
- 29 August â Death of Eystein I Magnusson, King of Norway 1102â1123 (born c.â1088).[2]
- 1125

- 1125 is regarded as the founding year of the city of Stavanger, with the establishing of the Diocese of Stavanger, and construction of the Stavanger Cathedral is initiated.[3]
1130s
- 1130
- 26 March â The death of Sigurd the Crusader in 1130 was followed by a century-long period of civil wars and rivalry for the crown.[4]
- 1133
- Birth of Sigurd II of Norway, king (died 1155).[5]
- 1134
- 9 August â Battle of Fyrileiv, the first battle in the Norwegian Civil War.
- 1135

- 7 January â In a naval battle in Bergen, Harald Gille defeated King Magnus. Magnus was captured and dethroned, blinded, castrated and had one leg cut off, and was subsequently placed in the Nidarholm Abbey.[6]
- 18 January â Bishop Reinald of Stavanger was executed by hanging in Bergen.[7][8]
- 10 August-12 August â Slavic raid on Kungahälla, the raid left irrecoverable damage on the town.[9]
- 1136
- 14 December â Harald IV Gille is assassinated within his sleep. Sigurd Slembe arranged for the assassination.[10]
- 1139
- 12 November â Battle of HolmengrÃ¥. Magnus IV of Norway, King (born c.â1115) was killed in battle.[11]
- Death of Sigurd Slembe, pretender to the throne.[12]
1140s
- 1147
- 18 May â Hovedøya Abbey was founded.
- Birth of Haakon II of Norway, King (died 1162).[13]
1150s
- 1152
- Trondheim is given the status of archdiocese.[14]
- Trondheim Cathedral School is established.[citation needed]
- The Second Norwegian Crusade sailed from Norway.
- 1155
- King Sigurd II of Norway was killed in Bergen by the men of his brother and co-ruler Inge I Haraldsson.[15][16]
- 1156
- Birth of Magnus V Erlingsson â King of Norway from 1161 to 1184 (d. 1184).[17]
- 1157
- 24 February â Death of Jon Birgersson, Archbishop of Nidaros.[18]
- King Eystein II of Norway was killed by supporters of his brother and co-ruler Inge I Haraldsson.[19][20]
1160s
- 1161
- 3 February â King Inge I of Norway was defeated and killed while leading his men into battle against Haakon II of Norway near Oslo.[21]
- 1162
- 7 July â Battle of Sekken, Haakon II of Norway is killed, and King Magnus V becomes the only King of Norway.[22]
- 1163
- The first Battle of Re.
- The Norwegian Law of Succession was introduced.
- Archbishop Eysteinn Erlendsson crowned Magnus V of Norway. This was the first time such a ceremony had taken place in Norway.[23]
- 29 September â Death of Sigurd Markusfostre, pretender and rival king (born c. 1155).[24]
1170s
- 1176
- Eystein Meyla is proclaimed king at Ãreting.[25]
- 1177
- Battle of Re.
- Death of Eystein Meyla, king pretender.[26]
- 1178
- The Battle of Hatthammeren, between Sverre Sigurdsson and Eysteinn Erlendsson.
- The Battle of Hørte bro, between Sverre Sigurdsson and Magnus Erlingsson.
- 1179
- 19 June â The Battle of Kalvskinnet, between Sverre Sigurdsson and Erling Skakke.
- Death of Erling Skakke, earl (born c.â1115).[27]
1180s
- 1184
- 15 June â Battle of Fimreite. Magnus V of Norway died in battle.[28]
- 1185
- Autumn â The Kuvlungs (Kuvlungene) rises up in revolt in Viken. Their leader, Jon Kuvlung, was a former monk and was claimed to be the son of Inge Krokrygg.
- Birth of Inge II of Norway, king (died 1217).[29]
- 1188
- 26 January â Death of Saint Eysteinn Erlendsson, archbishop (born c. 1120).[30]
- December â The Kuvlung revolt ends.[citation needed]
- Death of Jon Kuvlung, pretender to the crown.[31]
1190â1200
- 1194
- 3 April â Battle of FlorvÃ¥g. Sigurd Magnusson, nobleman (born c.â1180), died in battle.[32]