Question: Who is the maternal grandmother of Princess Sophie Of Saxe-Weimar-Eisenach (1911–1988)?
Sentence (from "Princess Feodora of Saxe-Meiningen (1890–1972)"): (Feodora Karola Charlotte Marie Adelheid Auguste Mathilde; 29 May 1890 – 12 March 1972) was the eldest child of Prince Friedrich Johann of Saxe-Meiningen, a younger son of Georg II, Duke of Saxe-Meiningen, and Countess Adelaide of Lippe-Biesterfeld, a daughter of Ernst, Count of Lippe-Biesterfeld.
Relevant evidence: Yes