Valdemar of Denmark1858 - 1939 Born Wed, 27 October 1858 Bernstorff Palace, Copenhagen Died Sat, 14 January 1939 Yellow Mansion, Copenhagen Buried Roskilde Cathedral, Roskilde Details Parents Prince Valdemar Lived 80 years, 2 months, 18 days father Christian IX 1818 - 1906 mother Louise of Hesse-Kassel 1817 - 1898 Siblings Brother Frederick VIII 1843 - 1912 Sister Alexandra of Denmark 1844 - 1925 Brother George I 1845 - 1913 Sister Maria Feodorovna 1847 - 1928 Sister Thyra of Denmark 1853 - 1933