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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...Vlad IV
(Encyclopedia)Vlad IV, 1431?–1476, prince of Walachia (1448, 1456–62, 1476), known as Vlad the Impaler. He was the son of Prince Vlad Dracul (Vlad the Devil) and is therefore also called Dracula or son of the D...Waldemar IV
(Encyclopedia)Waldemar IV (Valdemar Atterdag), c.1320–1375, king of Denmark (1340–75). He became king of a land completely dismembered by foreign rulers, but his ambition, unscrupulousness, and military ability...Thutmose IV
(Encyclopedia)Thutmose IV thŏthˈmēz, tōtˈmĕs [key], reigned c.1406–1398 b.c., king of ancient Egypt, of the XVIII dynasty, son and successor of Amenhotep II. He invaded Asia and Nubia, and formed alliances ...Thibaut IV
(Encyclopedia)Thibaut IV tēbōˈ [key], 1201–53, French trouvère, count of Champagne. He became Thibaut I, king of Navarre, in 1234, succeeding his uncle Sancho VII. He was defeated while leading a Crusade (123...Casimir IV
(Encyclopedia)Casimir IV, 1427–92, king of Poland (1447–92). He became (1440) ruler of Lithuania and in 1447 succeeded his brother Ladislaus III as king of Poland. He united the two nations more closely by plac...Ptolemy IV
(Encyclopedia)Ptolemy IV (Ptolemy Philopator) fĭlŏpˈətər [key], king of ancient Egypt (221–205 b.c.), of the Macedonian dynasty, son of Ptolemy III and Berenice of Cyrene. He had his mother, his brother, his...Martin V, 1368–1431, pope
(Encyclopedia)Martin V, 1368–1431, pope (1417–31), a Roman named Oddone Colonna; successor of Gregory XII. He was created cardinal by Innocent VII, and in the schism (see Schism, Great) he attended and supporte...Alfonso IV, king of Portugal
(Encyclopedia)Alfonso IV, 1291–1357, king of Portugal (1325–57), son and successor of Diniz. Disgruntled by the favoritism his father showed toward Alfonso's illegitimate half-brothers, Alfonso rose in revolt i...Charles IV, king of Hungary
(Encyclopedia)Charles IV, king of Hungary: see Charles I, emperor of Austria. ...Browse by Subject
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