Question: What is the place of birth of Karl Friedrich, Prince Of Hohenzollern's mother?
Sentence (from "Karl Friedrich, Prince of Hohenzollern-Sigmaringen"): Born in Sigmaringen, he was the eldest son of Joseph Friedrich Ernst, Prince of Hohenzollern-Sigmaringen and his first wife, Maria Franziska Louise of Oettingen-Spielberg.
Relevant evidence: No