Ducat - Jacob Gattilusio

Jacob Gattilusio ruled Lesbos as a Genoese lord under Byzantine suzerainty, and his gold ducats were struck in direct imitation of Venetian coinage — a deliberate commercial decision that made them acceptable across Aegean trade networks that ran on Venetian weight standards. The Gattilusio family had held Lesbos since 1355, when Francesco I received the island as a reward from John V Palaiologos for helping him reclaim Constantinople from a usurper.

Jacob's reign ended when he was strangled on the orders of his own brother Dorino, who took the lordship for himself in 1428.