Question: Who is the maternal grandfather of Prince Frederick Of Hohenzollern-Sigmaringen?
Sentence (from "Princess Josephine of Baden"): Princess Josephine Friederike Luise of Baden (21 October 1813 – 19 June 1900) was born at Mannheim, the second daughter of Charles, Grand Duke of Baden and his wife, Stéphanie de Beauharnais.
Relevant evidence: Yes