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John I, Spanish king of Castile and León

(Encyclopedia)John I, 1358–90, Spanish king of Castile and León (1379–90), son and successor of Henry II. He tried unsuccessfully to unite the Portuguese and Castilian crowns but was twice defeated by the Port...

Baliol, John de, 1249–1315, king of Scotland

(Encyclopedia)Baliol, John de, 1249–1315, king of Scotland (1292–96), son of John de Baliol (d. 1269). He became head of the family after the death of his elder brothers in 1278. At the death of Margaret Maid o...

Henry III, Spanish king of Castile and León

(Encyclopedia)Henry III, 1379–1406, Spanish king of Castile and León (1390–1406), son and successor of John I. His marriage (1388) to Catherine, daughter of John of Gaunt, ended a long dynastic conflict. Henry...

Constantine II, Roman emperor

(Encyclopedia)Constantine II, 316–40, Roman emperor, son of Constantine I. When the empire was divided at the death (337) of Constantine I, among the brothers Constantius II, Constans I, and Constantine II, Const...

Michael II, Byzantine emperor

(Encyclopedia)Michael II (Michael the Stammerer), d. 829, Byzantine emperor (820–29). A native of Phrygia, he fought with Emperor Leo V, whom he had helped gain the throne. Leo had him arrested for heading a cons...

Muhammad II, Ottoman sultan

(Encyclopedia)Muhammad II or Mehmet II (Muhammad the Conqueror), 1429–81, Ottoman sultan (1451–81), son and successor of Murad II. He is considered the true founder of the Ottoman Empire (Turkey). He completed ...

Manuel II, Byzantine emperor

(Encyclopedia)Manuel II (Manuel Palaeologus), 1350–1425, Byzantine emperor (1391–1425), son and successor of John V. In his youth he was taken captive by the Turks, and during his reign the Ottomans reduced the...

Charles X, king of Sweden

(Encyclopedia)Charles X, 1622–60, king of Sweden (1654–60), nephew of Gustavus II. The son of John Casimir, count palatine of Zweibrücken, he brought the house of Wittelsbach to the Swedish throne when his cou...

Polish Succession, War of the

(Encyclopedia)Polish Succession, War of the, 1733–35. On the death (1733) of Augustus II of Poland, Stanislaus I sought to reascend the Polish throne. He was supported by his son-in-law, Louis XV of France. The r...

Conrad II, ruler of the Holy Roman Empire

(Encyclopedia)Conrad II, c.990–1039, Holy Roman emperor (1027–39) and German king (1024–39), first of the Salian dynasty of the Holy Roman Empire. With the end of the Saxon line on the death of Henry II, the ...