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John V, Byzantine emperor

(Encyclopedia)John V (John Palaeologus) pālˌēŏlˈəgəs [key], 1332–91, Byzantine emperor (1341–91), son and successor of Andronicus III. Forced to fight John VI (John Cantacuzene), who usurped the throne d...

Charles VII, Holy Roman emperor

(Encyclopedia)Charles VII, 1697–1745, Holy Roman emperor (1742–45) and, as Charles Albert, elector of Bavaria (1726–45). Having married a daughter of Holy Roman Emperor Joseph I, he refused to recognize the p...

Carter, Ashton Baldwin

(Encyclopedia)Carter, Ashton Baldwin, 1954–, U.S. political scientist and government official, b. Philadephia, Pa. Trained as a theoretical physicist, he shifted to the study of ballistic missiles and internation...

Constantine V, Byzantine emperor

(Encyclopedia)Constantine V (Constantine Copronymus), 718–75, Byzantine emperor (741–75), son and successor of Leo III. An able general and administrator, he fought successfully against the Arabs, Slavs, and Bu...

Medieval Latin literature

(Encyclopedia)Medieval Latin literature, literary works written in the Latin language during the Middle Ages. Many literary genres were already being taken over by writing in the vernacular, which had begun in...

Martin I, Saint, d. 655?, pope

(Encyclopedia)Martin I, Saint, d. 655?, pope (649–55?), an Italian, b. Todi; successor of Theodore I. On his accession he summoned a great council at the Lateran, as St. Maximus had urged, to deal with Monothelet...

Leo V, Byzantine emperor

(Encyclopedia)Leo V (Leo the Armenian), d. 820, Byzantine emperor (813–20), successor of Michael I. A former general, Leo successfully defended (813) Constantinople against the Bulgars and concluded a 30-year tru...

Albert I, Holy Roman Emperor

(Encyclopedia)Albert I, c.1250–1308, Holy Roman Emperor (1298–1308), son of Rudolf I. Albert was invested with Austria and Styria in 1282 by his father, who also hoped to secure the succession as king of the Ge...

Villehardouin

(Encyclopedia)Villehardouin vēlärdwăNˈ [key], French noble family that ruled the Peloponnesus from 1210 to 1278. Geoffroi I de Villehardouin, d. 1218, nephew of the historian and marshal of Champagne and Romani...

Guy of Lusignan

(Encyclopedia)Guy of Lusignan lüsēnyäNˈ [key], d. 1194, Latin king of Jerusalem (1186–92) and Cyprus (1192–94), second husband of Sibylla, sister of King Baldwin IV of Jerusalem. In 1183 he was briefly rege...