John III

John III may refer to:

People

• John III (bishop of Jerusalem) in 516–524
• Pope John III, Pope from 561 to his death in 574
• John Scholasticus, Patriarch of Constantinople from 565 to his death in 577
• John III Rizocopo
  , Exarch of Ravenna from 710 to 711
• John III of the Sedre, Syriac Orthodox Patriarch of Antioch from 631 to his death in 648
• John III of Naples, Duke from 928 to his death in 968
• John III of Gaeta, Duke from 984 to his death in 1008
• John III of Amalfi, Duke in 1073
• John III Doukas Vatatzes (c. 1192 – 1254), Emperor of Nicaea
• John III Comyn of Badenoch (died 1306)
• John III, Duke of Brittany (1286–1341)
• John III, Duke of Brabant (1300–1355)
• John III Megas Komnenos
  (c. 1321 – 1362), Emperor of Trebizond
• John III of Montferrat
  (c. 1362 – 1381)
• John III, Burgrave of Nuremberg (c. 1369 – 1420)
• John III, Count of Auvergne
  (1467–1501)
• Ivan III of Russia (1440–1505), Grand Duke of Russia since 1462
• John III of Navarre (1469–1516)
• John III Crispo, Duke of the Archipelago (1480–1494)
• John III, Duke of Cleves (1490–1539)
• John III of Portugal (1502–1557), King of Portugal and of the Algarves
• John III of Sweden (1537–1592)
• John III Sobieski (1629–1696), King of Poland and Grand Duke of Lithuania
• Yohannes III of Ethiopia
  (c. 1824 – c. 1873), Emperor several times between 1840 and 1851
• Prince Jean, Duke of Guise, pretended to the title John III, King of the French, 1926–1940
• Infante Juan, Count of Barcelona, pretended to the title Juan III, King of Spain, 1941–1977
• John Ernest III, Duke of Saxe-Weimar (1664–1707)
• John Frederick III, Duke of Saxony (1538–1565)
• John William III, Duke of Saxe-Eisenach
  (1666–1729)

Biblical

• John 3, the third chapter of the Gospel of John
• Third Epistle of John or 3 John
• Ioannes III (disambiguation)

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