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Breton Succession, War of the

(Encyclopedia)Breton Succession, War of the, 1341–65, an important episode of the Hundred Years War. Duke John III of Brittany died in 1341 without heirs. The succession was contested by his half-brother, John de...

Matilda, countess of Tuscany

(Encyclopedia)Matilda, 1046–1115, countess of Tuscany, called the Great Countess; supporter of Pope Gregory VII in the papal conflict with the Holy Roman emperors. Ruling over Tuscany and parts of Emilia-Romagna ...

Henry III, king of France

(Encyclopedia)Henry III, 1551–89, king of France (1574–89); son of King Henry II and Catherine de' Medici. He succeeded his brother, Charles IX. As a leader of the royal army in the Wars of Religion (see Religi...

William I, king of England

(Encyclopedia)William I or William the Conqueror, 1027?–1087, king of England (1066–87). Earnest and resourceful, William was not only one of the greatest of English monarchs but a pivotal figure in European hi...

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...

Westphalia, Peace of

(Encyclopedia)Westphalia, Peace of, 1648, general settlement ending the Thirty Years War. It marked the end of the Holy Roman Empire as an effective institution and inaugurated the modern European state system. The...

Bernhard of Saxe-Weimar

(Encyclopedia)Bernhard of Saxe-Weimar săksˈ–wīˈmär, zäksˈə-vīˈmär [key], 1604–39, Protestant general in the Thirty Years War, duke of Weimar. Under Ernst von Mansfeld and the margrave of Baden, Bernh...

Constantine, Russian grand duke

(Encyclopedia)Constantine (Konstantin Pavlovich) kənstəntyēnˈ pävˈləvĭch [key], 1779–1831, Russian grand duke, second son of Czar Paul I and brother of Alexander I and Nicholas I. On the death of Alexande...

William III, king of the Netherlands

(Encyclopedia)William III, 1817–90, king of the Netherlands and grand duke of Luxembourg (1849–90), son and successor of William II. William III ruled as a constitutional monarch, and his long reign was unmarre...

Charlotte, grand duchess of Luxembourg

(Encyclopedia)Charlotte, 1896–1985, grand duchess of Luxembourg (1919–64). The second daughter of Duke William of Nassau-Weilburg and a Portuguese princess, Marie Anne of Braganza, she succeeded her sister, Mar...