Mediterranean Vector of International Relations in the Mirror of Sigismund of Luxembourg’s Conflict with Venice (1411—1413)

Abstract

The article covers international and diplomatic aspects of the conflict of Sigismund of Luxembourg, the King of Hungary and the Romans, and the Republic of Venice in 1411—1413. Venetian claims to Dalmatia that nominally belonged to the Hungarian Crown were the formal reason of the conflict. The article notices that the main battleground was in Italia, not Dalmatia. The author thereupon concludes that the actual factor of the events was the competition between Italian states. But contrary to the traditional opinion the researcher assigns the part of the main power that competed with Venice to Florence, not Genoa. In the early fifteenth century it entered into the struggle for the outlet to the sea and sought the extension of its influence for account of new trade lines that connected the Mediterranean with Central and North Europe. Meanwhile, the head-on clash of the republics was ruled out because their relations guaranteed them both the safety of the political balance of Italy and the defence of the peninsula from external actions. But Florence could force Venice by the manipulation by the Italian policy of the King Sigismund. The instrument of the pressure was the potential union of the King and the Pope John XXIII. It was the interests of Florence that made it possible to explain the reason that kept them from direct official contacts. The investigation of the nature of the conflict reveals also its indirect connection with historical events related to West European states, Poland, the Teutonic Order, the Byzantine Empire, the Ottomans and the Golden Horde.