Petalion Gulf

Off southern Euboea, the Petalioi islands give their name to the gulf between the island and Attica. Nearby Karystos became the seat of the southern barony of Euboea after the Fourth Crusade. As piracy increased and Castel Rosso was built inland, the town likely moved away from the coast toward the fortress. Karystos passed to Venice in 1366, before the Ottoman conquest of Euboea in 1470.