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Henry V, Holy Roman emperor and German king

(Encyclopedia)Henry V, 1081–1125, Holy Roman emperor (1111–25) and German king (1105–25), son of Henry IV. Crowned joint king with his father in 1099, he put himself at the head of the party desiring reconcil...

Calixtus I, Saint

(Encyclopedia)Calixtus I, Callixtus I, or Callistus I, Saint kəlĭkˈstəs, kəlĭsˈtəs [key], c.160–c.222, pope (217–222), a Roman; successor of St. Zephyrinus. As archdeacon to Zephyrinus he established th...

Baldwin I, Latin emperor of Constantinople

(Encyclopedia)Baldwin I bôlˈdwĭn [key], 1171–1205, 1st Latin emperor of Constantinople (1204–5). The count of Flanders (as Baldwin IX), he was a leader in the Fourth Crusade (see Crusades). After the seizure...

Henry II, Holy Roman emperor and German king

(Encyclopedia)Henry II, 973–1024, Holy Roman emperor (1014–24) and German king (1002–24), last of the Saxon line. He succeeded his father as duke of Bavaria. When Otto III died without an heir, Henry, who was...

Gelasius I, Saint

(Encyclopedia)Gelasius I, Saint jĭlāˈshēəs [key], d. 496, pope (492–96); successor of St. Felix III (also known as Felix II). He was a firm upholder of the papal supremacy in a dispute with Anastasius, the B...

Constantius II

(Encyclopedia)Constantius II, 317–61, Roman emperor, son of Constantine I. When the empire was divided (337) at the death of Constantine, Constantius II was given rule over Asia Minor, Syria, and Egypt, while his...

Gregory I, Saint

(Encyclopedia)Gregory I, Saint (Saint Gregory the Great), c.540–604, pope (590–604), a Roman; successor of Pelagius II. A Doctor of the Church, he was distinguished for his spiritual and temporal leadership. Hi...

Constantine II, king of Greece

(Encyclopedia)Constantine II, 1940–2023, king of the Hellenes; also known as Constantine XIII. He was appointed regent in 1964 and succeeded to the throne the same ...

Frederick II, Holy Roman emperor and German king

(Encyclopedia)Frederick II, 1194–1250, Holy Roman emperor (1220–50) and German king (1212–20), king of Sicily (1197–1250), and king of Jerusalem (1229–50), son of Holy Roman Emperor Henry VI and of Consta...

John VII, Byzantine emperor

(Encyclopedia)John VII (John Palaeologus) pāˌlēŏlˈəgəs [key], c.1370–1408, Byzantine emperor, grandson of John V. Backed by the sultan Beyazid I, he usurped (1390) the throne from John V but was dethroned ...