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Leo IV, Byzantine emperor

(Encyclopedia)Leo IV (Leo the Khazar), d. 780, Byzantine emperor (775–80), son and successor of Constantine V. He owed his nickname to his mother, a Khazar princess. Leo tempered the iconoclastic excesses of his ...

Leo VI, Byzantine emperor

(Encyclopedia)Leo VI (Leo the Wise or Leo the Philosopher), 862?–912, Byzantine emperor (886–912), son and successor of Basil I. He added to the work of his father by the publication (887–93) of the Basilica,...

Baldwin II, Latin emperor of Constantinople

(Encyclopedia)Baldwin II, 1217–73, last Latin emperor of Constantinople (1228–61), brother and successor of Robert of Courtenay. He began his personal rule only after the death (1237) of his father-in-law, John...

William II, king of Sicily

(Encyclopedia)William II (William the Good), c.1153–1189, king of Sicily (1166–89), son and successor of William I. He married (1177) Joan, daughter of Henry II of England. As an ally of Pope Alexander III and ...

Andronicus III

(Encyclopedia)Andronicus III (Andronicus Palaeologus), c.1296–1341, Byzantine emperor (1328–41), grandson of Andronicus II, whom he deposed after a series of civil wars. His chief minister was John Cantacuzene ...

Cantacuzene, John

(Encyclopedia)Cantacuzene, John: see John VI, Byzantine emperor. ...

emperor

(Encyclopedia)emperor [Lat. imperator=one holding supreme power, especially applied to generals], the sovereign head of an empire. In the Roman republic the term imperator referred to the chief military commander a...

Albert II, Holy Roman Emperor

(Encyclopedia)Albert II, 1397–1439, Holy Roman Emperor, king of Hungary and Bohemia (1438–39), duke of Austria (1404–38). He was the son-in-law of Holy Roman Emperor Sigismund, whom he aided against the Hussi...

Ferdinand II, Holy Roman emperor

(Encyclopedia)Ferdinand II, 1578–1637, Holy Roman emperor (1619–37), king of Bohemia (1617–37) and of Hungary (1618–37); successor of Holy Roman Emperor Matthias. Grandson of Ferdinand I, son of Archduke Ch...

Francis II, Holy Roman emperor

(Encyclopedia)Francis II, 1768–1835, last Holy Roman emperor (1792–1806), first emperor of Austria as Francis I (1804–35), king of Bohemia and of Hungary (1792–1835). He succeeded his father, Leopold II, sh...