Despotate of the Morea
After the Fourth Crusade, the area became a part of the Principality of Achaea, but was progressively recovered by the Byzantine Greeks of the Despotate of the Morea from the 1260s on, a process that was completed in 1320. The region fell into the hands of the Ottoman Turks in 1460. With the exception of a period of Venetian rule in 1687–1715, the region remained under Turkish control until 1821.