Question: When did Princess Frederica Of Prussia (1796–1850)'s husband die?
Sentence (from "Princess Charlotte of Prussia (1831–1855)"): Princess Charlotte of Prussia( 21 June 1831 – 30 March 1855), was by birth a Princess of Prussia and member of the House of Hohenzollern and by marriage Hereditary Princess of Saxe- Meiningen.
Relevant evidence: No