John Palaiologos (brother of Michael VIII)
John Doukas Palaiologos (Greek: Ἱωάννης Δούκας Παλαιολόγος, 1225/30 – 1274) was a Byzantine aristocrat, brother to Emperor Michael VIII Palaiologos (r. 1259–1282), who served as the commander-in-c...
John Palaiologos (brother of Michael VIII) - Wikipedia