William de Beauchamp, 1st Baron Bergavenny

William de Beauchamp
Baron Bergavenny
Sir William Beauchamp, 1st Baron Bergavenny, KG
Spouse(s)	Lady Joan FitzAlan (m. 1392–1411; his death)
Issue Richard de Beauchamp, 1st Earl of Worcester Joan Butler, Countess of Ormond
Noble family	Beauchamp
Father	Thomas de Beauchamp, 11th Earl of Warwick
Mother	Katherine Mortimer
Born	c. 1343
Died	8 May 1411 (aged 67–68)

William de Beauchamp, 1st Baron Bergavenny, KG (c. 1343 – 8 May 1411) was an English peer.

A younger son of Thomas de Beauchamp, 11th Earl of Warwick, and Katherine Mortimer, he was summoned to Parliament on 23 July 1392 as "Willilmo Beauchamp de Bergavenny", by which he is held to have become Baron Bergavenny.

Marriage and heirs

On 23 July 1392, he married Lady Joan FitzAlan, daughter of the Richard FitzAlan, 11th Earl of Arundel, and Elizabeth de Bohun, and they had the following children:

• Richard de Beauchamp, 1st Earl of Worcester, 2nd Baron Bergavenny (born before 1397 – died 1422), married Isabel le Despenser, daughter of Thomas le Despenser, 1st Earl of Gloucester and Constance of York, by whom he had one daughter Elizabeth de Beauchamp, Baroness Bergavenny.
• Joan de Beauchamp (1396 – 3 August 1430), married 28 August 1413 James Butler, 4th Earl of Ormond, son of James Butler, 3rd Earl of Ormond and Anne Welles, by whom she had five children, including Thomas Butler, 7th Earl of Ormond. Anne Boleyn and Mary Boleyn were notable descendants.

Ancestry

Ancestors of William de Beauchamp, 1st Baron Bergavenny

16. William Beauchamp, 9th Earl of Warwick               8. William de Beauchamp, 9th Earl of Warwick                       17. Isabella Maudit               4. Guy de Beauchamp, 10th Earl of Warwick                             18. John FitzGeoffrey, Lord of Shere               9. Maud FitzJohn                       19. Isabel Bigod               2. Thomas de Beauchamp, 11th Earl of Warwick                                   20. Roger V de Toeni               10. Ralph VII de Toeni, Lord Toeni of Flamsted                       21. Alice de Bohun               5. Alice de Toeni                             22.               11. Mary ??                       23.               1. William de Beauchamp, 1st Baron Bergavenny                                         24. Roger Mortimer, 1st Baron Mortimer               12. Edmund Mortimer, 2nd Baron Mortimer                       25. Maud de Braose, Baroness Mortimer               6. Roger Mortimer, 1st Earl of March                             26. Sir William de Fienes               13. Margaret de Fiennes                       27. Blanche de Brienne               3. Katherine Mortimer                                   28. Sir Geoffrey de Geneville, 1st Baron Geneville               14. Sir Piers de Genevelle                       29. Maud de Lacy, Baroness Geneville               7. Joan de Geneville, 2nd Baroness Geneville                             30. Hugh XII of Lusignan               15. Jeanne of Lusignan                       31. Jeanne de Fougères

References

• Carpenter, Christine. "Beauchamp, William (V), first Baron Bergavenny (c.1343–1411)". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/50236. (Subscription or UK public library membership required.)