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Michael I, Byzantine emperor

(Encyclopedia)Michael I (Michael Rangabe), d. c.845, Byzantine emperor (811–13), son-in-law of Nicephorus I. He supported orthodoxy against iconoclasm and recalled Theodore of Studium from exile. He recognized (8...

Manuel I, Byzantine emperor

(Encyclopedia)Manuel I (Manuel Comnenus) kŏmnēˈnəs [key], c.1120–1180, Byzantine emperor (1143–80), son and successor of John II. He began his reign with a war against the Seljuk Turks, the subjugation of R...

John I, Byzantine emperor

(Encyclopedia)John I (John Tzimisces) tsĭmĭsˈēz [key], c.925–976, Byzantine emperor (969–76). With the aid of Emperor Nicephorus II's wife, Theophano, John had Nicephorus murdered and himself proclaimed emp...

Muhammad I, Ottoman sultan

(Encyclopedia)Muhammad I or Mehmet I mĕmĕtˈ [key] (Muhammad the Restorer), 1389?–1421, Ottoman sultan (1413–21), son of Beyazid I. By defeating his brothers he reunited most of his father's empire. He consol...

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...

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