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Wiki information Doukaina:

Irene Doukaina
Noble person, Person, Deceased Person, Family member

Irene Doukaina or Ducaena was the wife of the Byzantine emperor Alexios I Komnenos, and the mother of the emperor John II Komnenos and of the historian Anna Komnene.

Euphrosyne Doukaina Kamatera
Noble person, Person, Deceased Person

Euphrosyne Doukaina Kamaterina or better Kamatera was the wife of the Byzantine Emperor Alexios III Angelos. Euphrosyne was the daughter of Andronikos Doukas Kamateros, a high-ranking official who held the titles of megas droungarios and pansebastos....