Question: When is Princess Sophie Of Saxe-Coburg-Saalfeld's mother's birthday?
Sentence (from "Princess Sophie of Saxe-Coburg-Saalfeld"): Princess Sophie Friederike Karoline Luise of Saxe-Coburg-Saalfeld (19 August 1778 – 9 July 1835) was a princess of Saxe-Coburg-Saalfeld, and the sister of Princess Victoria of Saxe-Coburg-Saalfeld and King Leopold I of Belgium, and aunt of Queen Victoria.
Relevant evidence: No