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Henry IV, king of England

(Encyclopedia)Henry IV, 1367–1413, king of England (1399–1413), eldest son of John of Gaunt and grandson of Edward III; called Henry of Bolingbroke. He founded the Lancastrian dynasty. The new king was immed...

James IV, king of Scotland

(Encyclopedia)James IV, 1473–1513, king of Scotland (1488–1513), son and successor of James III. He was an able and popular king, and his reign was one of stability and progress for Scotland. After suppressing ...

John IV, king of Portugal

(Encyclopedia)John IV, 1604–56, king of Portugal (1640–56). He succeeded as duke of Braganza in 1630. Descended from Manuel I and in illegitimate line from John I, he had the strongest claim to the Portuguese t...

Ladislaus IV, king of Poland

(Encyclopedia)Ladislaus IV, 1595–1648, king of Poland (1632–48), son and successor of Sigismund III. His reign was marked by struggles with his subjects and wars with the Swedes, the Russians, and the Ottomans....

Peter IV, king of Aragón

(Encyclopedia)Peter IV (Peter the Ceremonious), 1319?–1387, king of Aragón and count of Barcelona (1336–87); son and successor of Alfonso IV. He supported Alfonso XI of Castile at the battle of Tarifa (1340), ...

Frederick I, elector of Brandenburg

(Encyclopedia)Frederick I, 1371–1440, elector of Brandenburg (1415–40), first of the Hohenzollerns (see Hohenzollern, family) to rule Brandenburg. As Frederick VI, burgrave of Nuremburg, he served under King Si...

Lateran Council, Third

(Encyclopedia)Lateran Council, Third, 1179, 11th ecumenical council of the Roman Catholic Church. It was convened at the Lateran Palace, Rome, by Pope Alexander III after the Peace of Venice (1178) had reconciled h...

Alfonso X, Spanish king of Castile and León

(Encyclopedia)Alfonso X (Alfonso the Wise), 1221–84, Spanish king of Castile and León (1252–84); son and successor of Ferdinand III, whose conquests of the Moors he continued, notably by taking Cádiz (1262). ...

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