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Conrad, Latin king of Jerusalem

(Encyclopedia)Conrad, d. 1192, Latin king of Jerusalem (1192), marquis of Montferrat, a leading figure in the Third Crusade (see Crusades). He saved Tyre from the Saracens and became (1187) its lord. In 1189 he joi...

Leo IX, Saint, pope

(Encyclopedia)Leo IX, Saint, 1002–54, pope (1049–54), a German named Bruno of Toul, b. Alsace; successor of Damasus II. A relative of Holy Roman Emperor Henry III, he was educated at Toul and was made bishop th...

Scot, Michael

(Encyclopedia)Scot, Michael, c.1175–c.1234, medieval scholar, b. Scotland. He served as astrologer and physician at the court of Holy Roman Emperor Frederick II, where with other scholars he translated Aristotle ...

Raymond, count of Tripoli

(Encyclopedia)Raymond, c.1140–1187, count of Tripoli (1152–87), great-great-grandson of Raymond IV of Toulouse. He played a leading part in the last years of the Latin Kingdom of Jerusalem. Captured (1164) by t...

Trebizond, empire of

(Encyclopedia)Trebizond, empire of, 1204–1461. When the army of the Fourth Crusade overthrew (1204) the Byzantine Empire and established the Latin Empire of Constantinople, several Greek successor states sprang u...

Jovian

(Encyclopedia)Jovian (Flavius Claudius Jovianus) jōˈvēən [key], c.331–364, Roman emperor (363–64). The commander of the imperial guard under Julian the Apostate in his Persian campaign, Jovian was proclaime...

Ferdinand, emperor of Austria

(Encyclopedia)Ferdinand, 1793–1875, emperor of Austria (1835–48), son and successor of Emperor Francis I (who also, as Francis II, had been the last Holy Roman emperor). A well-meaning monarch in his lucid mome...

Eusebius of Nicomedia

(Encyclopedia)Eusebius of Nicomedia nĭkōmēˈdēə [key], d. 342, Christian churchman and theologian, leader of the heresy of Arianism. He was bishop of Nicomedia (330–39) and patriarch of Constantinople (339�...

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...

Monotheletism

(Encyclopedia)Monotheletism or Monothelitism both: mənŏthˈə lĭtĭzˌəm [key] [Gr.,=one will], 7th-century opinion condemned as heretical by the Third Council of Constantinople in 680 (see Constantinople, Thir...