defeated at Manzikert, [254];
slain, [256]
Ducas, see under [Constantine X.], [Michael VII.], [John III.], [Theodore II.]
Durazzo, battle of, [260]
Dushan, Stephen, king of Servia, conquests of, [327]
Ecloga, the, Leo III.'s code of laws, [194]
Eesa, Sultan, [334-5]
Egypt, conquered by the Persians, [134];
conquered by the Saracens, [164];
separated from the Caliphate, [227]