The British  socialite and artist Rosemary Pratt married this Royal Air Force officer, flying ace, courtier and author who served as what to King George VI?
Peter Townsend (RAF officer) Group Captain Peter Wooldridge Townsend, (22 November 1914 – 19 June 1995) was a Royal Air Force officer, flying ace, courtier and author. He was Equerry to King George VI from 1944 to 1952 and held the same position for Queen Elizabeth II from 1952 to 1953. Townsend also had a romance with Princess Margaret.
Prince John of the United Kingdom Prince John of the United Kingdom (John Charles Francis; 12 July 1905 – 18 January 1919) was the fifth son and youngest of the six children born to King George V and his wife, Queen Mary. At the time of John's birth, his father was the Prince of Wales and heir apparent to the reigning monarch of the United Kingdom, Edward VII. In 1910, George succeeded to the throne upon Edward's death and John became the fifth in line of succession.