London, England. 5th May 1948. Princess Elizabeth, the Duke of Edinburgh and Princess Margaret sit for supper when they attended the Charity Ball held in aid of King George V Sailor fund at the Dorchester Hotel. [Getty Images]

London, England, 5th May 1948, Princess Elizabeth, the Duke of Edinburgh and Princess Margaret sit for supper when they attended the Charity Ball held in aid of King George V Sailor fund at the Dorchester Hotel (Photo by Popperfoto via Getty Images/Getty Images) — see more

London, England, 5th May 1948, Princess Elizabeth, the Duke of Edinburgh and Princess Margaret sit for supper when they attended the Charity Ball held in aid of King George V Sailor fund at the Dorchester Hotel (Photo by Popperfoto via Getty Images/Getty Images)