Margery (Margaret) le Despencer, de jure suo jure 3rd Baroness le Despenser (1387 creation), was the daughter and heiress of Philip le Despencer, 2nd Baron le Despencer. She was born about 1397 in Nettlestead, Suffolk, England, and married John de Ros, 7th Baron de Ros. He died without heirs, and she married secondly Roger Wentworth of Nettlestead, Esq. (d.1452), son of John Wentworth of North Elmsall.