Question: When is Princess Sophie Of Saxe-Coburg-Saalfeld's mother's birthday?
Sentence (from "Princess Charlotte Sophie of Saxe-Coburg-Saalfeld"): Princess Charlotte Sophie of Saxe- Coburg- Saalfeld, Duchess in Saxony( 24 September 1731 – 2 August 1810) was a German duchess.
Relevant evidence: No