Marie was born in Arolsen, then part of the German Principality of Waldeck and Pyrmont. Her younger brother, Friedrich , was the last reigning prince of Waldeck and Pyrmont . Two of her younger sisters, Emma and Helena , married her third cousin once removed William III of the Netherlands and Prince Leopold, Duke of Albany (youngest son of Queen Victoria ), respectively.
Family. Helen was born in Arolsen, capital of Waldeck principality, in Germany.She was the sister of Friedrich, last reigning Prince of Waldeck and Pyrmont; Marie, the first wife of William II of Württemberg; and of Emma, Queen consort of William III of the Netherlands (and mother of Queen Wilhelmina).
Her brother, Friedrich, was the last reigning prince of Waldeck and Pyrmont. Her sister, Helena , was the wife of Prince Leopold, Duke of Albany , a son of Queen Victoria . Her maternal grandfather was William, Duke of Nassau , a grandson of Princess Carolina of Orange-Nassau , through which she inherited a place in the line of succession to the Dutch Crown until 1887.
Princess Margarethe of Waldeck and Pyrmont (22 May 1923 – 21 August 2003); her son Eberhard would marry Alexandra Reuss, granddaughter of Princess Marie Adelheid of Lippe; Princess Alexandra of Waldeck and Pyrmont (25 September 1924 – 4 September 2009) Princess Ingrid of Waldeck and Pyrmont (b. 2 September 1931)
Princess Marie of Nassau ... Prince of Waldeck and Pyrmont. Queen Sophia of Sweden and Norway (1836–1913), queen consort of Oscar II of Sweden. ...
On 24 September 1861, Crown Princess Victoria introduced her brother Albert Edward to Alexandra at Speyer. Almost a year later on 9 September 1862 (after his affair with Nellie Clifden and the death of his father), Albert Edward proposed to Alexandra at the Royal Castle of Laeken , the home of his great-uncle, King Leopold I of Belgium .
Marie was born at Hildburghausen, as Princess Marie of Saxe-Hildburghausen, the eldest daughter of Joseph, the Hereditary Prince of Saxe-Hildburghausen and Duchess Amelia of Württemberg. In 1826, the family moved to Altenburg as a result of a transfer of territories among the various branches of the Ernestine Wettins , and Marie took the title Princess of Saxe-Altenburg in place of the previous.