Isabel le Despenser, Countess of Arundel

Isabel le Despenser (1312 – living 1356, and died by 1374/5) was an English noblewoman. She was the eldest daughter of Hugh le Despenser, 2nd Baron le Despenser and Eleanor de Clare, suo jure 6th Lady of Glamorgan. Her mother was the eldest daughter of Joan of Acre, Princess of England; thus making Isabel a great-granddaughter of King Edward I by his first consort, Eleanor of Castile, while her father is famous for being the favourite of Edward II of England.