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Peter I, king of Portugal

(Encyclopedia)Peter I, 1320–67, king of Portugal (1357–67), son and successor of Alfonso IV. He married (1336) Constance Manuel, a Castilian noblewoman, but subsequently fell in love with one of her ladies in w...

Peter II, king of Portugal

(Encyclopedia)Peter II, 1648–1706, king of Portugal (1683–1706), younger son of John IV; brother and successor of Alfonso VI. In 1667, he seized power from his incompetent brother and ruled the country as princ...

Peter III, king of Portugal

(Encyclopedia)Peter III, 1717–86, king of Portugal (1777–86), younger brother of Joseph. He married his niece Maria I and was joint ruler with her, though she generally was the dominant figure. ...

Peter IV, king of Portugal

(Encyclopedia)Peter IV, king of Portugal: see Pedro I, emperor of Brazil. ...

Peter V, king of Portugal

(Encyclopedia)Peter V, 1837–61, king of Portugal (1853–61), eldest son and successor of Maria II. Ascending the throne on the death of his mother, he ruled under the regency of his father, Ferdinand II, until 1...

Peter I, king of Serbia

(Encyclopedia)Peter I, 1844–1921, king of Serbia (1903–18) and king of the Serbs, Croats, and Slovenes (1918–21), son of Prince Alexander of Serbia (Alexander Karadjordjević). He was brought up in exile in G...

Peter II, king of Yugoslovia

(Encyclopedia)Peter II, 1923–70, king of Yugoslavia (1934–45). He succeeded under the regency of his cousin, Prince Paul, when his father, King Alexander, was assassinated in Marseilles. In World War II, when P...

Louisburg

(Encyclopedia)Louisburg lo͞oˈĭsbərgˌ [key], town (1991 pop. 1,261), E Cape Breton Island, N.S., Canada. The town, an ice-free port, is near the site of the great fortress of Louisbourg, built (1720–40) by Fr...

Semenza, Gregg Leonard

(Encyclopedia)Semenza, Gregg Leonard, 1956–, American oncologist and molecular biologist, b. New York City, Ph.D. Univ. of Pennsylvania, 1984. Semenza has spent his entire career at the Johns Hopkins School of Me...

Dewar, Sir James

(Encyclopedia)Dewar, Sir James dyo͞oˈər [key], 1842–1923, British chemist and physicist, b. Scotland. He was professor of chemistry (from 1877) at the Royal Institution, London, and later was director of the D...