Princess Helena Victoria of Schleswig-Holstein Princess Helena Victoria of Schleswig-Holstein Princess Helena Victoria of Schleswig-Holstein (Victoria Louise Sophia Augusta Amelia Helena; 3 May 1870 – 13 March 1948) was a granddaughter of Queen Victoria of the United Kingdom. Princess Helena Victoria (always known to her family as "Thora") was born at Frogmore House, near Windsor Castle. Her father was Prince Christian of Schleswig-Holstein, the third son of Christian, Duke of Augustenburg and Countess Louise af Danneskjold-Samsøe. Her mother was Princess Helena, the fifth child and third daughter of Queen Victoria and Prince Albert of Saxe-Coburg and Gotha. Her parents resided in Britain from marriage. She
Princess Helena Victoria of Schleswig-Holstein her childhood at Cumberland Lodge, her father's residence as Ranger of Windsor Great Park. Known to her family as "Thora", or sometimes "Snipe", in reference to her sharp facial features, formally she used the names "Helena Victoria" from among her string of six given names. In July 1917, King George V changed the name of the British royal family to the House of Windsor. He also relinquished, on behalf of himself and his numerous cousins who were British subjects, the use of their German titles, styles, and surnames. Princess Helena Victoria and her younger sister, Princess Marie Louise, thereupon ceased