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Warwick, Richard de Beauchamp, earl of

(Encyclopedia)Warwick, Richard de Beauchamp, earl of, 1382–1439, English nobleman; son of Thomas de Beauchamp, earl of Warwick. He fought for Henry IV against Owen Glendower in Wales and the Percys at Shrewsbury ...

Yusuf ibn Tashfin

(Encyclopedia)Yusuf ibn Tashfin yo͞oso͝ofˈ ĭˈbən täshfēnˈ [key], d. 1106, ruler in the dynasty of the Almoravids (c.1059–1106). A Muslim, he led the Berbers in N Africa, continued the conquest of Morocco...

Braganza

(Encyclopedia)Braganza brəgänˈzä [key], royal house that ruled Portugal from 1640 to 1910 and Brazil from 1822 to 1889. It took its name from the castle of Braganza or Bragança. The line was descended from Alf...

Tigranes

(Encyclopedia)Tigranes tīgrāˈnēz [key], c.140 b.c.–55 b.c., king of Armenia (c.96 b.c.–55 b.c.), called also Tigranes I and Tigranes the Great. By an alliance with his father-in-law, Mithradates VI of Pontu...

Theodore of Studium, Saint

(Encyclopedia)Theodore of Studium, Saint sto͞oˈdēəm [key], 759–826, Byzantine Greek monastic reformer, also called St. Theodore the Studite. As an abbot he was early exiled for opposing the marriage of Empero...

behaviorism

(Encyclopedia)behaviorism, school of psychology which seeks to explain animal and human behavior entirely in terms of observable and measurable responses to environmental stimuli. Behaviorism was introduced (1913) ...

Demetrius II, king of ancient Syria

(Encyclopedia)Demetrius II (Demetrius Nicator) nīkāˈtər [key], d. c.125 b.c., king of ancient Syria, son of Demetrius I. He was aided against the usurper, Alexander Balas, by Ptolemy VI (Ptolemy Philometer). He...

Charles of Valois

(Encyclopedia)Charles of Valois välwäˈ [key], 1270–1325, French prince and military leader, third son of Philip III and father of Philip VI. He dominated the reign in France of his nephew Louis X. On the excom...

Colchis

(Encyclopedia)Colchis kŏlˈkĭs [key], ancient country on the eastern shore of the Black Sea and in the Caucasus region. Centered about the fertile valley of the Phasis River (the modern Rion), Colchis corresponds...

Ensenada, Zenón de Somodevilla, marqués de la

(Encyclopedia)Ensenada, Zenón de Somodevilla, marqués de la thānōnˈ dā sōmōᵺāvēˈlyä märkāsˈ dā lä ānsānäˈᵺä [key], 1702–81, Spanish statesman. He was created (1736) marquis for his part ...