From right: Princess Margaret, the younger sister

From right: Princess Margaret, the younger sister of future Britain's Queen Elizabeth, Group Captain Peter Townsend, Queen Elizabeth the Queen Mother and King George VI, attending a theater performance in London, August 1946. In June 1953, speculation was rife that Princess Margaret wanted to marry Peter Townsend, then her father's equerry, but he was divorced and any union was doomed. In May 1960, Margaret married the photographer Antony Armstrong-Jones who was later created Earl of Snowdon. Princess Margaret and her husband had two children, son Linley, Viscount Linley and daughter Sarah, but announced their separation in March 1976. When the marriage was officially ended two years later, Margaret became the first royal to divorce since Henry VIII in the 16th century. (Photo credit should read AFP via Getty Images)