Question: When did Theodora Palaiologina Synadene's mother die?
Sentence (from "Irene Komnene Laskarina Branaina"): Irene Komnene Laskarina Branaina (died around 1271) was a Byzantine noblewoman and wife of "sebastokrator" Constantine Palaiologos, half-brother of Byzantine Emperor Michael VIII Palaiologos.
Relevant evidence: Yes