Andreas Palaiologos Palaiologos dynasty Born: 1453 Died: 1502 Titles in pretence Preceded by Thomas Palaiologos — TITULAR — Despot of the Morea 1465–1502 Rights sold to the King of France Louis XII and the Catholic Monarchs Isabella I and Ferdinand V — TITULAR — Byzantine Emperor (formally "Emperor of Constantinople") 1465–1502 Reason for succession failure: The Fall of Constantinople led to the Ottoman conquest of the Byzantine Empire