Sigismund of Prussia1864 - 1866 Born Thu, 15 September 1864 New Palace, Potsdam Died Mon, 18 June 1866 New Palace, Potsdam Buried Friedenskirche, Potsdam Details Parents Prince of Prussia Franz Friedrich Sigismund Lived 1 year, 9 months, 3 days father Frederick III 1831 - 1888 mother Victoria 1840 - 1901 Siblings Brother Wilhelm II 1859 - 1941 Sister Charlotte of Prussia 1860 - 1919 Brother Henry of Prussia 1862 - 1929 Sister Viktoria of Prussia 1866 - 1929 Brother Waldemar of Prussia 1868 - 1879 Sister Sophia of Prussia 1870 - 1932 Sister Margaret of Prussia 1872 - 1954