dau of William FitzPatrick, 2nd Earl of Salisbury)
By his wife Ela, Countess of Salisbury, he had four sons and six daughters:[6]
William II Longespée (1212?–1250), who was sometimes called Earl of Salisbury but never legally bore the title because he died before his mother, Countess Ela, who held the earldom until her death in 1261.
Richard, a canon of Salisbury.
Stephen (d. 1260), who was seneschal of Gascony and married Emeline de Ridelsford, widow of Hugh de Lacy, 1st Earl of Ulster. Their two daughters were Eleanor Longspee, who married Sir Roger La Zouche and Emeline Longspee, who married Sir Maurice FitzMaurice, Justiciar of Ireland.
Nicholas (d. 1297), bishop of Salisbury.
Isabella Longespée, who married Sir William de Vesci.
Ela Longespée, who first married Thomas de Beaumont, 6th Earl of Warwick, and then married Philip Basset. No issue.[7]
Ida Longespée, married firstly Ralph who was son of Ralph de Somery, Baron of Dudley, and Margaret, daughter of John Marshal;[7] she married secondly William de Beauchamp, Baron of Bedford, by whom she had six children, including Maud de Beauchamp, wife of Roger de Mowbray.[8]
Ida II de Longespée (she is alternatively listed as William and Ela's granddaughter: see notes below), married Sir Walter FitzRobert, son of Robert Fitzwalter, by whom she had issue including Ela FitzWalter, wife of William de Odyngsells. Ela's and Williams's grandsons include William de Clinton and John de Grey.[7]
Mary Longespée, married. No issue.[7]
Pernel Longespée.