Question: When did Princess Elisabeth Of Saxe-Altenburg (1826–1896)'s mother die?
Sentence (from "Princess Elisabeth Sophie of Saxe-Altenburg"): Elisabeth Sophie of Saxe- Altenburg( 10 October 1619 – 20 December 1680), was a princess of Saxe- Altenburg and, by marriage, duchess of Saxe- Gotha.
Relevant evidence: No