Arturo Triangi di Maderno e Laces

Arturo Corrado Luigi Triangi came from a noble family and was the son of Giuseppe Triangi and his wife Elisabetta Thom.^[1]

On 16 October 1878, he began training at the Naval School in Genoa. On 1 August 1883, at the end of five years at the naval school, he was appointed ensign of the general staff corps. His first assignment was on the screw corvette Flavio Gioia. Over the next two years on board Flavio Gioia, Triangi voyaged to South America, touching the major Atlantic and Pacific ports of the continent. Returning home on board the aviso Staffetta, he was promoted to second lieutenant in January 1886.^[2]

His first assignment on a large vessel came after his appointment as tenente (lieutenant on 14 April 1889, when he was assigned to the ironclad battleship Enrico Dandolo, one of the largest units of the Regia Marina ("Royal Navy"). His first tour as a second officer was on board the Aquila (August–October 1888). His first command was of the torpedo boat the 64.S from 28 June 1896 to 3 June 1898, followed by a second on torpedo boat 133. In November 1902, he was appointed commander of a squadron of torpedo boats. In September 1904 he reached the rank of frigate captain and from 1 December 1909 to 29 September 1911 he commanded the Navy Engineer School. He was promoted to ship-of-the-line captain on 16 January 1910.^[2]

During the Italo-Turkish War, Triangi was sent to Naples, where he was placed in charge of the loading operations of men and supplies destined for Ottoman Libya. In March 1912, with the reorganization of the combined naval forces, Triangi was given overall naval command in Ottoman Tripolitania aboard the armored cruiser Carlo Alberto with the armored cruiser Marco Polo, the torpedo cruisers Coatit and Agordat, and the torpedo boats Partenope and Iride.^[3] He was tasked with maintaining control of the Tripolitanian coast and suppressing the smuggling of weapons in to Ottoman and indigenous forces who opposed the Italian invasion.^[2]

He took part in the capture of Sidi Said (27–28 June 1912), the units under his command supporting the action led by General Alberto Cavaciocchi with his ships’ guns.^{[4]: 95–8} With the same ships, Triangi also took part in the taking of Misrata.^[4]: 158 During the early stages of the operation his ships bombarded enemy forces along the Zeira coast in preparation for an amphibious assault.^[2]

From 1 May 1913 until 28 August 1914, Triangi was chief of staff of the 2nd naval squadron, serving aboard the battleship Regina Elena and then the dreadnought Dante Alighieri. At the outbreak of the World War I he was seconded as chief of staff of the maritime military department of Venice, a position he held from 1 October 1914 to 1 February 1917. He was also promoted to rear admiral on 18 May 1916.^[2]

In Venice, Triangi worked with Vice Admiral Paolo Thaon di Revel, who had recently resigned as Navy Chief of Staff and been assigned to the Venice base. Together they developed naval and air operations in the Adriatic Sea. In February 1917, when Thaon di Revel returned to office as Navy Chief of Staff, Triangi was appointed (1 February – 20 March 1917) to the position of general director of the royal crew corps.^{[cleanup needed]} From 18 February 1917 he was transferred to an auxiliary role because of his age, but despite this Thaon di Revel appointed him deputy chief of staff of the navy, a position he held until 16 June 1917.^[2]