Irene Doukaina

Irene Doukaina (Εἰρήνη Δούκαινα, Latinized as Ducaena, c. 1066 – 19 February 1138) was a Byzantine Empress-Consort by her marriage to Alexios I Komnenos. She was the mother of Emperor John II Komnenos and of the historian Anna Komnene.

Irene Doukaina in "Suffer a Sorceress"
As her husband Emperor Alexios was dying, Empress-Consort Irene Doukaina conspired with her daughter Princess Anna to remove Irene's own son Prince John from succession to the crown.