Battle of the Bosporus

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The Battle of the Bosporus or Bosphorus took place on 13 February 1352 during the War of the Straits, between the fleet of the Republic of Genoa on one side and an allied fleet of the Republic of Venice, the Crown of Aragon, and the Byzantine Empire on the other. The battle was begun late during the day and was fought largely during the night in the narrows of the Bosporus amidst a storm, resulting in a confused fight with high casualties on both sides. The Genoese were left as the victors, having suffered fewer casualties and remaining in place while the allies withdrew. The battle forced the Byzantine emperor John VI Kantakouzenos to come to terms with Genoa, exiting the war and confirming the de facto independence of the Genoese colony of Galata from the Byzantine Empire.