Anne de Mortimer, Countess of Cambridge was the grandmother of the last of the Plantagenet dynasty whose defeat at Bosworth Field marked the end of what in England?
Anne de Mortimer Anne de Mortimer, Countess of Cambridge (27 December 1390 – c. 22 September 1411), was the mother of Richard Plantagenet, 3rd Duke of York, and the grandmother of King Edward IV and King Richard III.
Ursula Pole, Baroness Stafford Ursula Pole, Baroness Stafford (c. 1504 – 12 August 1570) was an English noblewoman, a wealthy heiress, and the only daughter of Margaret Pole, 8th Countess of Salisbury, the last surviving member of the Plantagenet dynasty who was executed for treason by the command of King Henry VIII in 1541. Ursula was the wife of Henry Stafford, 1st Baron Stafford.