Большой совет
In October 1412, Loredan was named ducal councillor, but held the post only briefly, as he was elected governor ("podesta") of Treviso. The city constituted the "pivot of the Venetian defence system in the east", and Loredan busied himself with strengthening its fortifications over the next year. On 26 June 1414 he was elected, along with Lorenzo Capello and Vitale Miani, as "provveditore" over Dalmatia. There he was active in the suppression of pro-Hungarian moves among the local nobility, and in the preparations for a new fortification of Zara. on 5 April 1415 he was appointed commander of the annual trade convoy ("muda") to Flanders. On his return he was elected as an "Avogador de Comùn" (public prosecutor), but again held the post for a short while because on 2 April 1416 he was chosen as captain of the Gulf to lead an expedition to the Ottoman Empire. The Great Council of Venice charged him with conveying Venetian ambassadors to the Sultan, and exhausting peaceful means, but in the event, on 29 May 1416, at the Battle of Gallipoli, Loredan scored a major victory against the Ottoman fleet, destroying or capturing most of its vessels. Loredan himself was wounded in the battle. Despite this success, the conflict was not concluded until November 1419, when a peace treaty was signed following exhaustive negotiations. Nevertheless, on his return to Venice on 8 November 1416, Loredan was feted as a hero.