m. 8 September 1761
m. 22 Jul 1816
Facts and Events
Princess Mary, Duchess of Gloucester and Edinburgh (25 April 1776 – 30 April 1857) was the 11th child and fourth daughter of King George III of the United Kingdom.
She married her first cousin, Prince William Frederick, Duke of Gloucester and Edinburgh, when both were 40, and was his widow in later life. In her last years, her niece, Victoria, was on the throne as the fourth monarch during Mary's life, after her father and two of her brothers. Princess Mary was the longest-lived (at 81 years) and last survivor of George III's fifteen children; of those fifteen issue, thirteen lived to adulthood. She was also the only one of George III's children to be photographed. She died on 30 April 1857 at Gloucester House, London.