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 August 1901), known as "Vicky", was not only mother to their first grandchild, Wilhelm II, she was also the first of Victoria and Albert's children to become a grandparent, with the birth in 1879 of Princess Feodora of Saxe-Meiningen, who was the daughter of Princess Charlotte (Queen Victoria's first granddaughter). She was also the grandmother of the last of Victoria and Albert's great-granddaughters to die, Princess Katherine of Greece and Denmark (4 May 1913 – 2 October 2007), daughter of Vicky's fourth daughter, Queen Sophia of Greece. After Katherine's death in 2007, the only surviving great-grandchild of Queen Victoria was