Mary Boleyn, also known as Lady Mary, was the sister of English queen consort Anne Boleyn, whose family enjoyed considerable influence during the reign of King Henry VIII.

Anne Boleyn was Queen of England from 1533 to 1536, as the second wife of King Henry VIII. The circumstances of her marriage and execution by beheading for treason, made her a key figure in the political and religious upheaval that marked the start of the English Reformation.