Grossetto - Dorino Gattilusio

Dorino Gattilusio ruled Lesbos from 1428 until his death in 1449, having secured the lordship after ousting his own brother Jacopo in a coup backed by Genoese and Byzantine support. The island's mint operated under the peculiar dual authority typical of Genoese colonial arrangements — nominally subordinate to Genoa, practically autonomous. Dorino maintained careful diplomatic balance between an increasingly pressured Byzantine Empire and the Ottoman advance that would, within a decade of his death, render the entire Aegean Genoese presence extinct.