Queen Victoria interred beside Prince Albert in Frogmore Mausoleum at Windsor Great Park. With a reign of 63 years, seven months and two days, Victoria was the longest-reigning British monarch and the longest-reigning queen regnant in world history until her great-great-granddaughter Elizabeth II surpassed her on 9 September 2015. She was the last monarch of Britain from the House of Hanover. Her son and successor Edward VII belonged to her husband's House of Saxe-Coburg and Gotha. According to one of her biographers, Giles St Aubyn, Victoria wrote an average of 2,500 words a day during her adult life. From July 1832 until
Grandchildren of Queen Victoria and Prince Albert of Saxe-Coburg and Gotha were stillborn, and two more (Prince Alexander John of Wales and Prince Harald of Schleswig-Holstein) died shortly after birth. Their first grandchild was the future German Emperor Wilhelm II, who was born to their eldest child, Princess Victoria, on 27 January 1859; the youngest was Prince Maurice of Battenberg, born on 3 October 1891 to Princess Beatrice (1857–1944), who was herself the last child born to Victoria and Albert and the last child to die. The last of Victoria and Albert's grandchildren to die (almost exactly 80 years after Queen Victoria herself) was Princess Alice, Countess of Athlone (25 February