Which monarchy had this English peeress executed whose adult life is depicted in the 2014 historical novel The King's Curse?
Margaret Pole, Countess of Salisbury Margaret Pole, Countess of Salisbury (14 August 1473 – 27 May 1541), was an English peeress. She was the daughter of George, Duke of Clarence, the brother of kings Edward IV and Richard III. Margaret was one of two women in 16th century England to be a peeress in her own right with no titled husband. One of the few surviving members of the Plantagenet dynasty after the Wars of the Roses, she was executed in 1541 at the command of Henry VIII, who was the son of her first cousin Elizabeth of York. Pope Leo XIII beatified her as a martyr for the Catholic Church on 29 December 1886.
William Russell, Lord Russell William Russell, Lord Russell (29 September 1639 – 21 July 1683), was an English politician. He was a leading member of the Country Party, forerunners of the Whigs, who laid the groundwork opposition in the House of Commons of England to the concept of a reign of an openly Catholic King (James II) during the reign of King Charles II but ultimately resulted in his execution for treason, almost two years before King Charles died and James acceded to the throne.