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Lyons, Second Council of

(Encyclopedia)Lyons, Second Council of, 1274, 14th ecumenical council of the Roman Catholic Church. It was summoned by Pope Gregory X to discuss problems in the Holy Land, to remove the schism of East and West, and...

Frederick I, king of Prussia

(Encyclopedia)Frederick I, 1657–1713, first king of Prussia (1701–13), elector of Brandenburg (1688–1713) as Frederick III. He succeeded his father, Frederick William the Great Elector, in Brandenburg. Throug...

Wenceslaus I, king of Bohemia

(Encyclopedia)Wenceslaus I, d. 1253, king of Bohemia (1230–53), son and successor of Ottocar I. He invited large numbers of Germans to settle in the villages and towns of Bohemia and Moravia. In some villages pea...

John of Procida

(Encyclopedia)John of Procida prōˈchēdä [key], c.1225–c.1302, Italian conspirator, lord of the island of Procida. He was an ardent supporter of the Hohenstaufen cause in Sicily and attempted to secure the isl...

Gregory II, Saint

(Encyclopedia)Gregory II, Saint, d. 731, pope (715–31), a Roman; successor of Constantine. When Byzantine Emperor Leo III tried to impose iconoclasm in Italy by an imperial edict, Gregory answered that the empero...

Yellow Emperor

(Encyclopedia)Yellow Emperor, Mandarin Huangdi, legendary Chinese ruler and culture hero; tradition holds that he reigned from 2697 b.c. to 2597 b.c. He is one of the mythical prehistoric emperors who supposedly cr...

Otto III, Holy Roman emperor

(Encyclopedia)Otto III, 980–1002, Holy Roman emperor (996–1002) and German king (983–1002), son of Holy Roman Emperor Otto II and the Byzantine princess Theophano. On Otto's accession Henry the Wrangler, the ...

Gregoras, Nicephorus

(Encyclopedia)Gregoras, Nicephorus nīsĕfˈərəs grĕgˈərəs [key], c.1295–c.1359, Byzantine historian and theologian, one of the most learned men of his time. Among his scientific and philosophical works is ...

Nicholas I, Saint, pope

(Encyclopedia)Nicholas I, Saint, c.825–867, pope (858–67), a Roman; successor of Benedict III. He was a vigorous and politically active pope who arbitrated both temporal and religious disputes. His decisions of...

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