Mary, Princess Royal was a member of the British royal family. She was the only daughter of King George V and Queen Mary, the sister of Kings Edward VIII and George VI, and aunt of Elizabeth II. In the First World War, she performed charity work in support of servicemen and their families. She married Henry Lascelles, Viscount Lascelles, in 1922. Mary was given the title of Princess Royal in 1932. During the Second World War, she was Controller Commandant of the Auxiliary Territorial Service. The Princess Royal and the Earl of Harewood had two sons, George Lascelles, 7th Earl of Harewood, and The Honourable Gerald Lascelles.

Mary of Teck was Queen of the United Kingdom and the British Dominions, and Empress of India, from 6 May 1910 until 20 January 1936 as the wife of King-Emperor George V.