Negroponte played a significant role in the history of Frankish Greece, and was attacked by the Principality of Achaea in the War of the Euboeote Succession (1257/8), the Catalan Company in 1317, the Turks in 1350/1, until it was finally captured by the Ottoman Empire after a long siege in 1470. That siege is the subject of the Rossini opera" Maometto II". The Ottomans made it the seat of the Admiral of the Archipelago (the Aegean Islands). In 1688, it was successfully held by the Ottomans against a strong Venetian attack.