María de las Mercedes1880 - 1904 Born Sat, 11 September 1880 Palacio Real de Madrid, Madrid Died Mon, 17 October 1904 Palacio Real de Madrid, Madrid Buried El Escorial, San Lorenzo de El Escorial Details Parents Princess of Asturias María de las Mercedes de Borbón y Habsburgo-Lorena Lived 24 years, 1 month, 6 days father Alfonso XII 1857 - 1885 mother Maria Christina of Austria 1858 - 1929 Siblings Sister María Teresa of Spain 1882 - 1912 Brother Alfonso XIII 1886 - 1941