Sources

1) Source: Chancery: Inquisitions Post Mortem, Series I, Edward III "Margaret de Warbelton...The manor, held for her life of the heir of Hugh Plecy, as of the fee of Oyly (Doyly), by knight’s service, with reversion to Hugh le Despencer, earl of Winchester, and his heirs...Edward le Despencer, aged 24 years and more, son and heir of Edward le Despencer, brother and heir of Hugh le Despencer, son and heir of Hugh le Despencer, son and heir of the aforesaid Hugh le Despencer, earl of Winchester, is her heir."Dated: 1366 Evidences Hugh is father of Edward.. External Link
https://www.british-history.ac.uk/inquis-post-mortem/vol12/pp51-65. Reference: C 135/188/14 (Data from direct source)
2) Source: Exchequer: Treasury of Receipt: Ancient Deeds, Series A "Letter of attorney by Anne late the wife of Edward le Despenser, son of Hugh le Despenser." Date: 1363. External Link
https://discovery.nationalarchives.gov.uk/details/r/C4943538. Reference: E 40/4785 (Data from direct source)
3) Source: English Baronies: a Study of Their Origin and Descent, 1086-1327. Reference: Page 6; Barony of Gloucester (Questionable reliability of evidence)
4) Source: Chancery: Inquisitions Post Mortem, Series I, Edward II "Gilbert de Clare, sometime earl of Gloucester and Hertford...Maud, late the wife of the said Gilbert [Badlesmere], in the king’s court at Westminster claims a third part in dower against Bartholomew de Badelesmere, who vouches to warrant Hugh le Despenser, the younger, and Eleanor his wife, Hugh de Audeleye and Margaret his wife, and Roger Dammari and Elizabeth his wife, sisters and heirs of the said earl"Date: 1318 Evidences marriage of Hugh and Eleanor.. External Link
https://www.british-history.ac.uk/inquis-post-mortem/vol6/pp110-129. Reference: C 134/63/10
5) Source: Chancery: Inquisitions Post Mortem, Series I, Edward III "ELEANOR, LATE THE WIFE OF HUGH LE DESPENSER...Hugh [le Despenser] her firstborn son, aged 29 years and more, is her next heir... She died on 30 June, 11 Edward III." Date: 1337. External Link
https://discovery.nationalarchives.gov.uk/details/r/C9718539. Reference: C 135/51/12 (Data from direct source)
6) Source: Chancery: Inquisitions Post Mortem, Series I, Edward III "Margaret de Warbelton...The manor, held for her life of the heir of Hugh Plecy, as of the fee of Oyly (Doyly), by knight’s service, with reversion to Hugh le Despencer, earl of Winchester, and his heirs...Edward le Despencer, aged 24 years and more, son and heir of Edward le Despencer, brother and heir of Hugh le Despencer, son and heir of Hugh le Despencer, son and heir of the aforesaid Hugh le Despencer, earl of Winchester, is her heir."Dated: 1366. External Link
https://www.british-history.ac.uk/inquis-post-mortem/vol12/pp51-65. Reference: C 135/188/14 (Data from direct source)
7) Source: Chancery: Inquisitions Post Mortem, Series I, Edward III "Anne, late the wife of Edward le Despenser... the manor is of the inheritance of Edward le Despenser, son of the said Edward and Anne, who is 25 years of age and more and his father’s heir....She died on 8 August last." Date: 1367. External Link
https://www.british-history.ac.uk/inquis-post-mortem/vol12/pp105-118. Reference: C 135/193/4 (Data from direct source)
8) Source: Chancery: Inquisitions Post Mortem, Series I, Edward III "Edward le Despenser...Edward his son, aged 6 years, is his next heir... held jointly with Anne his wife, who still survives...on Monday the morrow of St. Michael last, on which day he died" Date: 1342. External Link
https://www.british-history.ac.uk/inquis-post-mortem/vol8/pp262-279. Reference: C 135/67/3 (Data from direct source)
9) Source: Chancery: Inquisitions Post Mortem, Series I, Edward III "EDWARD, SON OF EDWARD LE DESPENSER, KINSMAN AND HEIR OF HUGH LE DESPENSER...Edward le Despenser, the father, married Anne, daughter of William de Ferariis, knight, at Groby, co. Leicester, on 20 April, 9 Edward III, and of her begat the said Edward, who was born at Esynden on 24 March, 10 Edward III, and was baptised on the same day in the church of St. Mary Magdalene there". Date: 1356. External Link
https://www.british-history.ac.uk/inquis-post-mortem/vol10/pp274-292. Reference: C 135/135/10 (Data from direct source)
10) Source: Chancery: Inquisitions Post Mortem, Series I, Richard II "Elizabeth late the wife of Maurice Berkeley of Berkeley, knight...She died on 13 July last. Thomas Berkeley, son of the aforesaid Maurice Berkeley, is her heir and is 36 years of age and more...She held the under-mentioned manor of Hurst and rents of 22 marks and 12l. 10s. in joint feoffment with the said Maurice, by gift of Sir Thomas de Berkeley, father of the said Maurice, to them and their heirs male."Dated: 1389. External Link
https://www.british-history.ac.uk/inquis-post-mortem/vol16/pp306-320. Reference: C 136/58/1 (Data from direct source)