About Mary, Princess Royal and Countess of Harewood
Mary, Princess Royal (Victoria Alexandra Alice Mary; 25 April 1897 – 28 March 1965), 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 the aunt of Queen Elizabeth II. During the First World War, she undertook extensive charity work in support of servicemen and their families. In 1922, she married Henry Lascelles, Viscount Lascelles (later the 6th Earl of Harewood), and they had two sons, George Lascelles, 7th Earl of Harewood, and Gerald David Lascelles. Mary was granted the title Princess Royal in 1932. During the Second World War, she served as Controller Commandant of the Auxiliary Territorial Service. == Early life and education == Mary was born at 3:30 pm on 25 April 1897 at York Cottage on the Sandringham Estate in Norfolk, during the reign of her great-grandmother Queen Victoria. She was the third child and only daughter of the Duke and Duchess of York, later King George V and Queen Mary. Her father was the only surviving son of the Prince and Princess of Wales, later King Edward VII and Queen Alexandra, and her mother was the eldest child and only daughter of the Duke and Duchess of Teck. She was named Victoria Alexandra Alice Mary after her paternal great-grandmother Queen Victoria; her paternal grandmother, Alexandra, Princess of Wales; her maternal grandmother, Mary Adelaide, Duchess of Teck; and her great-aunt, Alice, Grand Duchess of Hesse and by Rhine, with whom she shared a birthday. She was known by the last of her given names, Mary.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.