Back الأميرة ماري، دوقة غلوستر وإدنبره Arabic الاميره مارى دوقه جلوستر وادنبره ARZ Marie Hannoverská (1776–1857) Czech Y Dywysoges Mary o'r Deyrnas Unedig Welsh Maria von Großbritannien, Irland und Hannover (1776–1857) German Μαρία του Ηνωμένου Βασιλείου (1776-1857) Greek María del Reino Unido (1776-1857) Spanish Printsess Mary, Gloucesteri ja Edinburghi krahvinna Estonian Marie de Hanovre French Putri Mary, Adipatni Gloucester dan Edinburgh ID
| Princess Mary | |
|---|---|
| Duchess of Gloucester and Edinburgh | |
 Photograph of Mary by Antoine Claudet, circa 1856 | |
| Born | 25 April 1776 Buckingham House, London, England |
| Died | 30 April 1857 (aged 81) Gloucester House, Mayfair, London |
| Burial | 8 May 1857 |
| Spouse | |
| House | Hanover |
| Father | George III |
| Mother | Charlotte of Mecklenburg-Strelitz |
| Signature |  |
Princess Mary, Duchess of Gloucester and Edinburgh (25 April 1776 – 30 April 1857) was the eleventh child and fourth daughter of King George III and his consort Charlotte of Mecklenburg-Strelitz.
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 Queen Victoria was on the throne as the fourth monarch during Mary's life, after her father and two of her brothers, George IV and William IV. Dying aged 81 at Gloucester House, Weymouth, Mary was the longest-lived and last survivor of George III's fifteen children (thirteen of whom lived to adulthood).