Question: When did Frederick, Prince Of Hohenzollern's mother die?
Sentence (from "Frederick, Prince of Hohenzollern"): Frederick, Prince of Hohenzollern  (30 August 1891 in Heiligendamm, Mecklenburg-Schwerin – 6 February 1965 in Krauchenwies, Baden-Württemberg, Germany) was the eldest son of William, Prince of Hohenzollern and Princess Maria Teresa of Bourbon-Two Sicilies.
Relevant evidence: Yes