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Muhammad IV, Ottoman sultan

(Encyclopedia)Muhammad IV or Mehmet IV, 1641–92, Ottoman sultan (1648–87). He was proclaimed sultan of the Ottoman Empire (Turkey) by the corps of Janissaries after the deposition and murder of his father, Sult...

Constantine IV, Byzantine emperor

(Encyclopedia)Constantine IV, c.652–685, Byzantine emperor (668–85), son and successor of Constans II. He defended Constantinople against the annual naval attacks of the Muslims, who finally withdrew in 678; Gr...

Martin IV, d. 1285, pope

(Encyclopedia)Martin IV, d. 1285, pope (1281–85), a Frenchman named Simon de Brie; successor of Nicholas III. He was chancellor under Louis IX of France and was created cardinal by Urban IV. He was thus a support...

Charles I, emperor of Austria

(Encyclopedia)Charles I, 1887–1922, last emperor of Austria and, as Charles IV, king of Hungary (1916–18); son of Archduke Otto and grandnephew and successor of Emperor Francis Joseph. He married Zita of Bourbo...

Ferdinand VII, king of Spain

(Encyclopedia)Ferdinand VII, 1784–1833, king of Spain (1808–33), son of Charles IV and María Luisa. Excluded from a role in the government, he became the center of intrigues against the chief minister Godoy an...

Henry of Navarre

(Encyclopedia)Henry of Navarre: see Henry IV, king of France. ...

Philip the Fair

(Encyclopedia)Philip the Fair: see Philip IV, king of France. ...

Épernon, Jean Louis de Nogaret, duc d'

(Encyclopedia)Épernon, Jean Louis de Nogaret, duc d' zhäN lwē də nōgärāˈ dük dāpĕrnôNˈ [key], 1554–1642, French nobleman. He distinguished himself during the civil wars at the beginning of the reign ...

Henrietta of England

(Encyclopedia)Henrietta of England (Henrietta Anne), 1644–70, duchesse d'Orléans, called Madame; sister-in-law of King Louis XIV of France. The daughter of King Charles I and Queen Henrietta Maria of England, sh...

Holy Roman Emperors (table)

(Encyclopedia)HOLY ROMAN EMPERORS(including dates of reign) Saxon dynasty Salian or Franconian dynasty Hohenstaufen dynasty and rivals Interregnum, 1254–73 Hapsburg, Luxemburg, and other dynasties ...