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Henry I, German king

(Encyclopedia)Henry I or Henry the Fowler, 876?–936, German king (919–36), first of the Saxon line and father of Otto I, the first of the Holy Roman emperors. Henry succeeded his father as duke of Saxony in 912...

Constantine I, Roman emperor

(Encyclopedia)Constantine I or Constantine the Great kŏnˈstəntēn, –tīn [key], 288?–337, Roman emperor, b. Naissus (present-day Niš, Serbia). He was the son of Constantius I and Helena and was named in ful...

Robert I, French king

(Encyclopedia)Robert I, c.865–923, French king (922–23), son of Count Robert the Strong and younger brother of King Eudes. He inherited from Eudes the territory between the Seine and the Loire rivers. In 922, R...

Nicholas I, Saint, pope

(Encyclopedia)Nicholas I, Saint, c.825–867, pope (858–67), a Roman; successor of Benedict III. He was a vigorous and politically active pope who arbitrated both temporal and religious disputes. His decisions of...

John I, Spanish king of Castile and León

(Encyclopedia)John I, 1358–90, Spanish king of Castile and León (1379–90), son and successor of Henry II. He tried unsuccessfully to unite the Portuguese and Castilian crowns but was twice defeated by the Port...

George I, king of Great Britain and Ireland

(Encyclopedia)George I (George Louis), 1660–1727, king of Great Britain and Ireland (1714–27); son of Sophia, electress of Hanover, and great-grandson of James I. He became (1698) elector of Hanover, fought in ...

Conrad I, ruler of the Holy Roman Empire

(Encyclopedia)Conrad I, d. 918, German king (911–18). As duke of Franconia he distinguished himself by military exploits and in 911 was elected successor to Louis the Child by the Franconian, Saxon, Bavarian, and...

Charles I, king of England, Scotland, and Ireland

(Encyclopedia)Charles I, 1600–1649, king of England, Scotland, and Ireland (1625–49), second son of James I and Anne of Denmark. There were no decisive victories in the civil war until Charles was defeated at...

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