Margaret Percy

Margaret Percy (born c.1318, died 1375) was a daughter of Henry Percy, 2nd Baron Percy of Alnwick, by Idonia Clifford. By a marriage licence of January 1340 she married Sir Robert d'Umfraville, only son of the Earl of Angus, who died without issue before 1368. Before May that year she married, as his second wife, William Ferrers, 3rd Baron Ferrers of Groby; this marriage too was childless.

Her will as Ferrers's widow was dated 26 April 1374. She died in Essex on 2 September 1375 and was buried in the Dominican friars' church at Chelmsford.