Anne Boleyn

Anne Boleyn was the second wife of King Henry VIII of England and the mother of Queen Elizabeth I. She was beheaded on 19 May 1536, shortly after meeting the Sixth Doctor and Peri Brown on 4 May. (AUDIO: Recorded Time; PROSE: The Roundheads)

Her stepdaughter Queen Mary I referred to her contemptuously as a [[concubine]] and noted that her younger half-sister Elizabeth bore a striking resemblance to a lute player in her father's court. (AUDIO: The Marian Conspiracy)

Because the Tenth Doctor married Queen Elizabeth, Anne Boleyn would be his mother-in-law. (TV: The Day of the Doctor)

Behind the scenes

 * According to The Brilliant Book 2012, a book that contains non-narrative based information, in an alternate universe where all of history happened at once, Henry still beheaded Boleyn, only he claimed to still have a working relationship with her afterwards.
 * She was played be Vanessa Redgrave in the 1966 film A Man for All Seasons and by Nicola Bryant in an episode of the CBBC series Scoop.