Sources

1) Source: The History of Parliament . External Link
http://www.historyofparliamentonline.org/volume/1386-1421/member/beauchamp-sir-william-1421. Reference: Beauchamp, Sir William (d.c.1421), of Powick, Worcs. and Alcester, Warws. (Unreliable evidence or estimated data)
2) Source: King's Remembrancer: Accounts Various "Funeral expenses of Walter de Bello Campo."Dated: c1303. External Link
http://discovery.nationalarchives.gov.uk/details/r/C4520465. Reference: E 101/507/4 (Data from secondary evidence)
3) Source: Exchequer: King's Remembrancer: Ancient Deeds, Series D "John de Bello Campo to Walter de Bello Campo and Alice his wife: Grant of 3 carucates and a rent in Powick and Bransford." Dated: 1269. External Link
http://discovery.nationalarchives.gov.uk/details/r/C5521349. Reference: E 210/9493
4) Source: Chancery: Inquisitions Post Mortem, Series I, Edward III "Giles de Bello Campo (Beauchamp)...He died on 12 October, 35 Edward III. John de Bello Campo, knight, his son, aged 23 years and more, is his heir."Dated: 1361. External Link
https://www.british-history.ac.uk/inquis-post-mortem/vol11/pp215-230. Reference: C 135/168/19 (Data from direct source)
5) Source: Chancery: Inquisitions Post Mortem, Series I, Edward III "John de Bures...held for his life of the inheritance of John son and heir of Robert de Ferrers...He died on 21 December last. Katharine his daughter, wife of Giles de Bello Campo, aged 26 years and more, is his heir...He died on the feast of St. Thomas the Apostle last. Heir as above, aged 35 years and more...He died on 21 December last. Heir as above, aged 30 years and more...He died on 6 December...John son of Robert de Ferrar’, aged 19 years, is heir of the said Hawise de Ferres."Dated: December 1350. External Link
http://discovery.nationalarchives.gov.uk/details/r/C9777688. Reference: C 135/110/8 (Data from direct source)