 On the death of the fourth baron in 1446, his granddaughter, Eleanor Poynings, who had married Sir Henry Percy, later 3rd Earl of Northumberland, became "de jure suo jure" Baroness Poynings.Percy was summoned to Parliament on her behalf from 14 December 1446 to 26 May 1455 by writs directed "Henrico de Percy, chivaler, domino de Poynings".The 3rd Earl was slain at the Battle of Towton on 29 March 1461.