Question: Who is the maternal grandmother of Princess Sophie Of Saxe-Weimar-Eisenach (1911–1988)?
Sentence (from "Princess Sophie of Saxe-Weimar-Eisenach (1911–1988)"): Princess Sophie Louise of Saxe-Weimar-Eisenach (20 March 1911 – 21 November 1988) was a princess of the House of Saxe-Weimar-Eisenach.
Relevant evidence: No