Hilda of Luxembourg1897 - 1979 Born Mon, 15 February 1897 Berg Castle, Colmar-Berg Died Sat, 8 September 1979 Berg Castle, Colmar-Berg Details Parents Princess Hilda Sophie Marie Adélaïde Wilhelmine de Nassau-Weilburg Lived 82 years, 6 months, 24 days father William IV 1852 - 1912 mother Marie Anne of Portugal 1861 - 1942 Siblings Sister Marie-Adélaïde 1894 - 1924 Sister Charlotte 1896 - 1985 Sister Antonia of Luxembourg 1899 - 1954 Sister Elisabeth of Luxembourg 1901 - 1950 Sister Sophie of Luxembourg 1902 - 1941