Prince Frederick William of Hesse-Kassel Germanic prince (1820–1884) (1820–1884) Parents Princess Louise Charlotte of Denmark Prince William of Hesse-Kassel Children Princess Elisabeth of Hesse-Kassel Princess Sibylle Margaretha of Hesse-Kassel Prince Wilhelm of Hesse-Kassel Prince Frederick Charles of Hesse Alexander Frederick, Landgrave of Hesse Prince Friedrich Wilhelm, Landgrave of Hesse-Kassel Princess Marie Polyxene of Hessen-Kassel Siblings Princess Auguste of Hessen-Kassel Louise of Hesse-Kassel Princess Marie Luise Charlotte of Hesse-Kassel Karoline Frederike Marie Wilhelmine Prinzessin von Hessen-Kassel Sophie Wilhelmine Auguste Elisabeth Prinzessin von Hessen-Kassel Partners Princess Anna of Prussia Grand Duchess Alexandra Nikolaevna of Russia
