| The Columbia Encyclopedia, Sixth Edition. 2001-07. |
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| Leo IV, Byzantine emperor |
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| (Leo the Khazar), d. 780, Byzantine emperor (77580), son and successor of Constantine V. He owed his nickname to his mother, a Khazar princess. Leo tempered the iconoclastic excesses of his fathers reign. On his death his Athenian wife, Irene, became regent for their son, Constantine VI. |
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| | | The Columbia Encyclopedia, Sixth Edition. Copyright © 2007 Columbia University Press. |
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