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Celestine I, Saint

(Encyclopedia)Celestine I, Saint sĕlˈəstĭn [key], d. 432, pope (422–32), an Italian; successor of St. Boniface I. The opposition of St. Cyril of Alexandria to Nestorianism inspired both sides to appeal to the...

Sylvester I, Saint

(Encyclopedia)Sylvester I, Saint, pope (314–35), a Roman; successor of St. Miltiades (St. Melchiades). He was pope under the reign of Emperor Constantine I, who built for him the Lateran and other churches. St. S...

Adrian I, pope

(Encyclopedia)Adrian I, d. 795, pope (772–95), a Roman; successor of Stephen IV. At Adrian's urging, Charlemagne crossed the Alps and defeated the Lombard king, Desiderius, who had annexed papal territory. That d...

Robert II, duke of Normandy

(Encyclopedia)Robert II (Robert Curthose), c.1054–1134, duke of Normandy (1087–1106); eldest son of King William I of England. Aided by King Philip I of France, he rebelled (1077) against his father. Father and...

Aljubarrota

(Encyclopedia)Aljubarrota əlzho͞obər-rôˈtə [key], village, Leiria dist., W central Portugal, in Beira Litoral. On Aug. 14, 1385, it was the site of the momentous battle in which the Portuguese, aided by Engli...

Sebastian

(Encyclopedia)Sebastian, 1554–78, king of Portugal (1557–78), grandson and successor of John III. He was under the regency first of his grandmother (until 1562) and then of his uncle Henry (a cardinal and later...

Arthur I

(Encyclopedia)Arthur I, 1187–1203?, duke of Brittany (1196–1203?), son of Geoffrey, fourth son of Henry II of England and Constance, heiress of Brittany. Arthur, a posthumous child, was proclaimed duke in 1196,...

Túy

(Encyclopedia)Túy to͞oˈē [key], town (1990 pop. 16,248), Pontevedra prov., NW Spain, in Galicia, on the Miño River, opposite the Portuguese town of Valença do Minho. The capital of the Visigothic King Witiza ...

Harold I

(Encyclopedia)Harold I or Harold Fairhair, Norse Harald Haarfager, c.850–c.933, first king of Norway, son of Halfdan the Black, king of Vestfold (SE Norway). After succeeding his father, Harold initiated a series...

Martin, 1356–1410, king of Aragón and count of Barcelona

(Encyclopedia)Martin, 1356–1410, king of Aragón and count of Barcelona (c.1395–1410) and, as Martin II, king of Sicily (1409–10). He succeeded his brother, John I, in Aragón and became king of Sicily on the...