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Guelphs and Ghibellines

(Encyclopedia)Guelphs and Ghibellines gwĕlfs, gĭbˈəlēnz, –lĭnz [key], opposing political factions in Germany and in Italy during the later Middle Ages. The names were used to designate the papal (Guelph) pa...

Leo III, Byzantine emperor

(Encyclopedia)Leo III (Leo the Isaurian or Leo the Syrian), c.680–741, Byzantine emperor (717–41). He was probably born in N Syria (rather than in Isauria, as once thought). He held diplomatic and military post...

Romanus II

(Encyclopedia)Romanus II, 939–63, Byzantine emperor (959–63), son and successor of Constantine VII. A profligate, he came under the domination of his second wife, Theophano. She, along with the eunuch Joseph Br...

Sanders, Otto Liman von

(Encyclopedia)Sanders, Otto Liman von: see Liman von Sanders, Otto. ...

Kahn, Otto Hermann

(Encyclopedia)Kahn, Otto Hermann kän [key], 1867–1934, American banker and patron of the arts, born and educated in Germany. He emigrated to the United States in 1893 and in 1897 joined the banking firm of Kuhn,...

Muhammad II, Ottoman sultan

(Encyclopedia)Muhammad II or Mehmet II (Muhammad the Conqueror), 1429–81, Ottoman sultan (1451–81), son and successor of Murad II. He is considered the true founder of the Ottoman Empire (Turkey). He completed ...

John I, Byzantine emperor

(Encyclopedia)John I (John Tzimisces) tsĭmĭsˈēz [key], c.925–976, Byzantine emperor (969–76). With the aid of Emperor Nicephorus II's wife, Theophano, John had Nicephorus murdered and himself proclaimed emp...

Holy Land

(Encyclopedia)Holy Land: see Palestine.

Holy Thursday

(Encyclopedia)Holy Thursday: see Ascension.

holy year

(Encyclopedia)holy year: see jubilee.