Question: What is the date of death of Maria Anna Sophia Of Saxony's mother?
Sentence (from "Princess Anna of Saxony (1929–2012)"): Anna was the third child and second- eldest daughter of Friedrich Christian, Margrave of Meissen and his wife Princess Elisabeth Helene of Thurn and Taxis, and a younger sister of Maria Emanuel, Margrave of Meissen and Albert, Margrave of Meissen, former heads of the Royal House of Saxony and senior claimants to the defunct throne of the Kingdom of Saxony.
Relevant evidence: No