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Henry IV, Holy Roman emperor and German king

(Encyclopedia)Henry IV, 1050–1106, Holy Roman emperor (1084–1105) and German king (1056–1105), son and successor of Henry III. He was the central figure in the opening stages of the long struggle between the ...

John I, Byzantine emperor

(Encyclopedia)John I (John Tzimisces) tsĭmĭsˈēz [key], c.925–976, Byzantine emperor (969–76). With the aid of Emperor Nicephorus II's wife, Theophano, John had Nicephorus murdered and himself proclaimed emp...

Hohenzollern, German princely family

(Encyclopedia)Hohenzollern hōˌən-tsôlˈərn [key], German princely family that ruled Brandenburg (1415–1918), Prussia (1525–1918), and Germany (1871–1918). Originating in S Germany and traceable to the 11...

Baldwin I, Latin king of Jerusalem

(Encyclopedia)Baldwin I (Baldwin of Boulogne), 1058?–1118, Latin king of Jerusalem (1100–1118), brother and successor of Godfrey of Bouillon, whom he accompanied on the First Crusade (see Crusades). Separating ...

Henry I, Spanish king of Castile

(Encyclopedia)Henry I, 1204–17, Spanish king of Castile (1214–17), son and successor of Alfonso VIII. At his death after a short, uneventful reign, his sister Berenguela renounced her rights to the crown in fav...

emperor

(Encyclopedia)emperor [Lat. imperator=one holding supreme power, especially applied to generals], the sovereign head of an empire. In the Roman republic the term imperator referred to the chief military commander a...

Ladislaus III, king of Poland

(Encyclopedia)Ladislaus III, 1424–44, king of Poland (1434–44) and, as Uladislaus I, king of Hungary (1440–44), son of Ladislaus II. He led two crusades against the Ottomans; the first (1443) was highly succe...

Hertford, William Seymour, 1st marquess and 2d earl of

(Encyclopedia)Hertford, William Seymour, 1st marquess and 2d earl of härˈfərd, härtˈ– [key], 1588–1660, English nobleman; great-grandson of Edward Seymour, duke of Somerset, and grandson of Lady Catherine ...

Michael I, Byzantine emperor

(Encyclopedia)Michael I (Michael Rangabe), d. c.845, Byzantine emperor (811–13), son-in-law of Nicephorus I. He supported orthodoxy against iconoclasm and recalled Theodore of Studium from exile. He recognized (8...

Peter III, king of Aragón and king of Sicily

(Encyclopedia)Peter III (Peter the Great), 1239?–1285, king of Aragón and count of Barcelona (1276–85) and king of Sicily (1282–85); son and successor of James I. In 1280 he established Aragonese influence o...