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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...

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...

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...

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...

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...

Leo I, Saint, pope

(Encyclopedia)Leo I, Saint (Saint Leo the Great), c.400–461, pope (440–61), an Italian; successor of St. Sixtus III. A Doctor of the Church, he was one of the greatest pontiffs of the early years of the church....

Leo I, Byzantine emperor

(Encyclopedia)Leo I, d. 474, Byzantine or East Roman emperor (457–74). Chosen by the senate to succeed Marcian, he sought to counteract the preponderance of Germans in the Roman army by enlisting Isaurians. A nav...

Louis I, French king

(Encyclopedia)Louis I, French king: see Louis I, emperor of the West. ...

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...