Question: When is Princess Elisabeth Of Saxe-Altenburg (1826–1896)'s mother's birthday?
Sentence (from "Georg Moritz, Hereditary Prince of Saxe-Altenburg"): George Moritz, Hereditary Prince of Saxe- Altenburg(" William George Moritz Ernest Albert Frederick Charles Constantine Edward Maximilian"; 13 May 1900 – 13 February 1991), was the last head of the ducal house of Saxe- Altenburg and nominal Duke of Saxe- Altenburg.
Relevant evidence: No