Mary Boleyn
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(c. 1499/1500–19 July 1543) was a member of the English Boleyn family, which enjoyed considerable influence during the reign of King Henry VIII of England. Mary was the sister of Queen consort Anne Boleyn; some historians claim she was the younger sister, but her children believed Mary was the elder sister, as do most historians today.

Mary was one of the mistresses of King Henry VIII and allegedly had two of his children. Mary was also, allegedly, a mistress of Henry VIII's rival, King Francis I of France.
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