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
Legitimacy of Queen Victoria may have continued among descendants of Victoria. At least two of her descendants, Charlotte, Duchess of Saxe-Meiningen, and Prince William of Gloucester are suspected of having suffered from it. Concrete evidence on the origins of the hæmophilia disease and paternity of Victoria could be achieved with a DNA test of her or her parents' remains, but no such study has been sanctioned by the Royal Family. Legitimacy of Queen Victoria The parentage of Queen Victoria has been the subject of speculation. Princess Charlotte of Wales was the only daughter and heiress presumptive of the Prince Regent (later King George IV).