Page "Margaret Pole, Countess of Salisbury" Paragraph 3

Richard III ordered the children held at Sheriff Hutton Castle in Yorkshire, since they were rivals for the throne.

When he was defeated by Henry VII of England at the Battle of Bosworth in 1485, the new king married Margaret's cousin Elizabeth, Edward IV's daughter.

He kept her brother Edward in the Tower of London.

Edward was briefly displayed in public at St Paul's Cathedral in 1487 in response to the presentation of the impostor Lambert Simnel as the " Earl of Warwick " to the Irish lords.

Shortly thereafter, probably in November 1487, Henry VII gave Margaret in marriage to his cousin, Sir Richard Pole, whose mother was half-sister of the king's mother, Lady Margaret Beaufort ; this would make it more difficult for plotters to use her as a figurehead.

When Perkin Warbeck impersonated her cousin Richard of Shrewsbury, 1st Duke of York, in 1499, her brother Edward was attainted and executed for involvement in the plot.