He married
Katherine Mortimer, daughter of
Roger Mortimer, 1st Earl of March. They had six sons and ten daughters: •
Guy de Beauchamp (died 28 April 1360); married Philippa de Ferrers, daughter of Henry de Ferrers, 2nd Lord Ferrers of Groby, and
Isabel de Verdun, by whom he had two daughters: Elizabeth (died c. 1369), and Katherine, who became a nun. His daughters were, by
entail, excluded from their grandfather's inheritance. •
Thomas de Beauchamp, 12th Earl of Warwick (16 March 13398 August 1401), married Margaret Ferrers, daughter of William Ferrers, 3rd Lord of Groby, and Margaret de Ufford, by whom he had issue, including
Richard Beauchamp, 13th Earl of Warwick. • Reinbrun de Beauchamp (died 1361) •
William de Beauchamp, 1st Baron Bergavenny (c. 13438 May 1411); inherited the
honour of
Abergavenny. On 23 July 1392, married
Lady Joan FitzAlan, daughter of
Richard FitzAlan, 11th Earl of Arundel and
Lady Elizabeth de Bohun, by whom he had a son,
Richard de Beauchamp, 1st Earl of Worcester, and a daughter,
Joan de Beauchamp, Countess of Ormond. Queen consort
Anne Boleyn was a notable descendant of the latter. • Roger de Beauchamp (died 1361) • Maud de Beauchamp (died 1403); married
Roger de Clifford, 5th Baron de Clifford, by whom she had issue, including
Thomas de Clifford, 6th Baron de Clifford. •
Philippa de Beauchamp; married
Hugh de Stafford, 2nd Earl of Stafford, by whom she had nine children. • Alice Beauchamp (died 1383); married, firstly,
John Beauchamp, 3rd Baron Beauchamp of Somerset, and, secondly, Sir Matthew Gournay. She died childless. • Joan de Beauchamp; married
Ralph Basset, 3rd Baron Basset of Drayton. She died childless. • Isabel de Beauchamp (died 29 September 1416); married, firstly, John le Strange,
5th Baron Strange by whom she had a daughter, Elizabeth (1373–1383), and, secondly,
William de Ufford, 2nd Earl of Suffolk. Upon the latter's death, she became a nun. She died without living issue. • Margaret de Beauchamp; married Guy de Montfort. This marriage was childless. After his death in 1261, she became a nun until 1269. • Elizabeth de Beauchamp; married Thomas de Ufford KG. • Anne de Beauchamp; married Walter de Cokesey. • Juliana de Beauchamp • Katherine de Beauchamp; became a nun at Shouldham Priory. • Ramburne de Beauchamp; had one issue named Eleanora.
Catherine Grandison, Countess of Salisbury was not his daughter, although she is presented as such in
William Painter's
Palace of Pleasure and in the Elizabethan play
Edward III, which may be by
William Shakespeare. ==Death==