George I Ghisi

George I Ghisi (died 15 March 1311), son of the Venetian lord Bartholomew Ghisi, held the Achaean barony of Chalandritsa through his first wife. In 1292, as castellan of Kalamata, he attacked Roger of Lauria's fleet near Navarino, was captured, and freed only for a heavy ransom.

In Venice's war with Byzantium he helped seize Keos and Serifos, and in 1303 inherited Tinos and Mykonos. Through his second wife Alice dalle Carceri he became triarch of Negroponte, and fell against the Catalan Company at the Cephissos in 1311.