Theobald married Elizabeth, Baroness Clare De Clare on 4 Feb 1315/1316. Elizabeth, (daughter of Gilbert "the-Red-Earl" De Clare, [Earl of Glouces and Joan "of Acre" England, [COUNTESS GLOUCE) was born on 16 Sep 1295 in Tewkesbury, GLOUCESTER, England; was christened in (65-1360); died on 4 Nov 1360; was buried in St Mary, Aldgate, London, Middlesex. [Group Sheet] [Family Chart]

Theobald married Matilda (Maud) De Mortimer on 29 Jul 1302. Matilda (daughter of Edmund De Mortimer, [LORD OF WIGMORE and Margaret De Fiennes) was born about 1286 in Of, Wigmore, Herefordshire, England; died on 18 Sep 1312 in , Alton, Staffordshire, England; was buried on 9 Oct 1312 in Croxden Abbey, , Staffordshire, England. [Group Sheet] [Family Chart]