Question: Who is Theodora Kantakouzene (Wife Of Alexios Iv Of Trebizond)'s mother-in-law?
Sentence (from "Theodora Kantakouzene (wife of Alexios IV of Trebizond)"): Theodora Kantakouzene Megale Komnene (died 12 November 1426) was the Empress consort of Alexios IV of Trebizond.
Relevant evidence: Yes