Question: When did Princess Margaretha Of Saxony's mother die?
Sentence (from "Princess Margaretha of Saxony"): Princess Margaretha of Saxony, Duchess of Saxony  (24 May 1840 – 15 September 1858) was the eighth child and fifth eldest daughter of John of Saxony and his wife Amalie Auguste of Bavaria and a younger sister of Albert of Saxony and George of Saxony.
Relevant evidence: Yes