John IV

John IV may refer to:Patriarch John IV of Alexandria, Patriarch between 569 and 579 John IV of Armenia, Catholicos of Armenia between 833 and 855 John IV of Constantinople, Patriarch from 582 Pope John IV, Pope from 640 Pope John IV of Alexandria, Coptic Pope from 777 to 799 John IV John IV of Naples, Duke from 997 to after 1002 John IV of Gaeta John IV of Ohrid, Archbishop of Ohrid in 1139/43–1157/64 John IV, Count of Soissons John IV Laskaris (1250–1305), Emperor of Nicaea from 1259 to 1261 John IV, Duke of Brittany (1339–1399), Count of Montfort, 7th Earl of Richmond John IV, Lord of Arkel John IV, Count of Sponheim-Starkenburg John IV, Duke of Saxe-Lauenburg John IV, Duke of Mecklenburg John IV, Count of Katzenelnbogen John IV, Count of Armagnac (1396–1450), Count of Armagnac, Fézensac, and Rodez John IV, Duke of Brabant (1403–1427) John IV of Trebizond (1403–1460), Emperor of Trebizond John IV, Count of Nassau-Siegen (1410–1475), Count of Nassau, Vianden and Diez John IV, Marquess of Montferrat (1412–1464) Jan IV of Oświęcim (1426/1430–1497), Duke of Gliwice John IV, Duke of Bavaria (1437–1463) John IV, Landgrave of Leuchtenberg (1470–1531) John IV, Duke of Krnov, Duke of Wodzisław Śląski John IV of Chalon-Arlay (1443–1502), prince of Orange Ivan IV the Terrible (1530–1584), Czar of Russia John IV, Count of Nassau-Idstein (1603–1677) John IV of Portugal (1604–1656), known as John II, Duke of Braganza, before 1640 Yohannes IV of Ethiopia (1837–1889) Jean, Count of Paris, Orléanist pretender to the French throne as Jean IV