Princess Elizabeth II was born in London, England on April 21, 1926. She was the first child of the Duke and Duchess of York. Princess Elizabeth alongside her mother, Queen Elizabeth I, and her younger sister, Margaret circa 1930.Princess Elizabeth shared a sweet moment with her sister, Princess Margaret, in 1932.Princess Elizabeth posed with her pet dog on the grounds of the royal family’s London home, 145 Piccadilly.Princesses Elizabeth and Margaret alongside their parents, King George VI and Queen Elizabeth I, on their coronation day, May 12, 1937.Princess Elizabeth with a pony in Windsor Great Park, Berkshire in 1939.Princess Elizabeth and Princess Margaret with their mother, Queen Elizabeth I, at Windsor Castle in 1941.Princess Elizabeth and Princess Margaret in their Girl Guide uniforms at Frogmore House in June 1942. Queen Elizabeth in an ambulance during her wartime service in the Auxiliary Territorial Service in April 1945.Princess Elizabeth and her father, King George VI, in a garden, in July 1946.The British royal family in the state apartments at Buckingham Palace to mark the engagement of Princess Elizabeth and Philip Mountbatten in July 1947. Princess Elizabeth and Prince Philip, Duke of Edinburgh at Buckingham Palace on their wedding day, November 20, 1947.Princess Elizabeth with her husband Prince Philip. Duke of Edinburgh and their children Prince Charles and Princess Anne in August 1951. Elizabeth would become queen six months later.