5th Baroness Burghersh Isabel Le Despenser was born on 26 Jul 1400 in Cardiff, Glamorgan, Wales, United Kingdom; died on 27 Dec 1439 in Minoresses' Convent, Aldgate, London, Middlesex, England, United Kingdom; was buried on 13 Jan 1440 in Tewkesbury Abbey, Tewkesbury, Gloucestershire, England, United Kingdom.