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 Victoria → Prince Alfred → Princess Marie of Edinburgh (Queen of Romania) → Princess Marie of Romania (Queen of Yugoslavia) → King Peter II Princess Helena (1846–1923) married Prince Christian of Schleswig-Holstein (1831–1917) in Windsor Castle's private chapel on 5 July 1866. Two sons and two daughters survived childhood; two other sons died within ten days of their birth. Princess Helena and Prince Christian had no legitimate grandchildren and one natural granddaughter who died without having issue of her own. Like other British royal holders of German titles (such as Admiral Louis Battenberg), Princess Helena, Prince Christian, and their two