Prince Friedrich Sigismund of Prussia Prussian prince (1891–1927) (1891–1927) Parents Princess Louise Sophie of Schleswig-Holstein-Sonderburg-Augustenburg Prince Friedrich Leopold of Prussia Children Luise Viktoria von Preußen Friedrich Karl von Preußen Siblings Princess Victoria Margaret of Prussia Prince Friedrich Karl of Prussia Prince Friedrich Leopold of Prussia Partners Princess Marie Luise of Schaumburg-Lippe
