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Romanus IV

(Encyclopedia)Romanus IV (Romanus Diogenes) dīŏjˈənēz [key], d. 1072, Byzantine emperor (1068–71). A Cappadocian general, he succeeded Constantine X by marrying his widow, Eudocia Macrembolitissa. After some...

Henry III, Holy Roman emperor and German king

(Encyclopedia)Henry III, 1017–56, Holy Roman emperor (1046–56) and German king (1039–56), son and successor of Conrad II. He was crowned joint king with his father in 1028, and acceded on Conrad's death in 10...

Frederick III, Holy Roman emperor and German king

(Encyclopedia)Frederick III, 1415–93, Holy Roman emperor (1452–93) and German king (1440–93). With his brother Albert VI he inherited the duchies of Styria, Carinthia, and Carniola. He became head of the hous...

Constantius III

(Encyclopedia)Constantius III, d. 421, Roman emperor of the West (421). In 411, as general of Honorius, he defeated Gerontius and Constantine; thereafter he was the virtual ruler of the West. Aspiring to the hand o...

Valentinian III

(Encyclopedia)Valentinian III, 419–55, Roman emperor of the West (425–55). Two years after the death of his uncle, Honorius, he was placed on the throne by his cousin Theodosius II, who deposed the usurper John...

Ahmed III

(Encyclopedia)Ahmed III, 1673–1736, Ottoman sultan (1703–30), brother and successor of Mustafa II to the throne of the Ottoman Empire (Turkey). He gave asylum to Charles XII of Sweden and to Mazepa after Peter ...

Orkhan

(Encyclopedia)Orkhan ôr-khänˈ [key], 1288?–1362?, Ottoman sultan (1326–1362?), son and successor of Osman I as leader of the Ottoman Turks. He defeated Byzantine Emperor Andronicus III and conquered large pa...

Napoleon III

(Encyclopedia)Napoleon III (Louis Napoleon Bonaparte), 1808–73, emperor of the French (1852–70), son of Louis Bonaparte (see under Bonaparte, family), king of Holland. Napoleon III was a complex figure. H...

Philip, Roman emperor

(Encyclopedia)Philip or Philip the Arabian (Marcus Julius Philippus), 204?–249, Roman emperor (244–49). He served under Gordian III against the Persians, instigated the assassination of the emperor, and conclud...

Sigismund III

(Encyclopedia)Sigismund III, 1566–1632, king of Poland (1587–1632) and Sweden (1592–99). The son of John III of Sweden and Catherine, sister of Sigismund II of Poland, he united the Vasa and Jagiello dynastie...