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John II, Spanish king of Castile and León

(Encyclopedia)John II, 1405–54, Spanish king of Castile and León (1406–54), son and successor of Henry III. He was little interested in government, which he entrusted to his favorite Alvaro de Luna. Literature...

Leo IV, Saint, pope

(Encyclopedia)Leo IV, Saint, d. 855, pope (847–55), a Roman; successor of Sergius II. He had seen the Saracen attack on Rome (846), and to prevent its recurrence he fortified the city and its suburbs. He built a ...

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 ...

Salza, Hermann von

(Encyclopedia)Salza, Hermann von hĕrˈmän fən zälˈtsä [key], d. 1239, grand master (1210–39) of the Teutonic Knights. A friend and adviser of Holy Roman Emperor Frederick II, he often mediated between the e...

Frederick III, emperor of Germany and king of Prussia

(Encyclopedia)Frederick III, 1831–88, emperor of Germany and king of Prussia (Mar.–June, 1888), son and successor of William I. In 1858 he married Victoria, the princess royal of England, who exerted considerab...

Haile Selassie

(Encyclopedia)Haile Selassie hīˈlē səlăsˈē, –läˈsē [key], [Amharic,=power of the Trinity], 1892–1975, emperor of Ethiopia (1930–74). He was born Tafari Makonnen, the son of a noted general and the g...

Polish Succession, War of the

(Encyclopedia)Polish Succession, War of the, 1733–35. On the death (1733) of Augustus II of Poland, Stanislaus I sought to reascend the Polish throne. He was supported by his son-in-law, Louis XV of France. The r...

Edessa

(Encyclopedia)Edessa ĭdĕsˈə [key], ancient city of Mesopotamia, on the site of modern Şanlıurfa, Turkey. It emerged in the 4th cent. b.c. as Orrhoe, or Arrhoe, and was later named Edessa by Seleucus I of Syri...

Kyffhäuser

(Encyclopedia)Kyffhäuser kĭfˈhoizər [key], forested mountain, c.1,550 ft (470 m), Saxony-Anhalt, central Germany. It is crowned by the two ruined castles of Rothenburg (7th cent.) and Kyffhausen (12th cent.) an...

John IV, king of Portugal

(Encyclopedia)John IV, 1604–56, king of Portugal (1640–56). He succeeded as duke of Braganza in 1630. Descended from Manuel I and in illegitimate line from John I, he had the strongest claim to the Portuguese t...