REYNOLD DE MOHUN, son and heir, a minor at his father's death. His wardship was granted in 1213 to Henry FitzCount, and on Henry's death in 1227 to William Briwere, his own grandfather. He had livery
by 1227, when he was made a knight. He accompanied the King on his French expedition in 1230, and to Wales in 123i. He was in debt to the Jews in 1234, and made a justice of the Common Pleas. In 1242 he was to have two good ships provided for him to follow the King across the sea to Gascony, and in April of that year was a Chief Justice of the Forests South of Trent. He served in the expedition into Wales in 1245, and in 1246 refounded the abbey of Newenham at Axminster. He was also a benefactor of the houses of Bruton, Barlinch and Cleeve. In 1252 he was appointed keeper of the royal forests South of Trent, with 100 marks per annum for maintenance, and keeper during pleasure of Sauvey Castle, co. Leicester. In 1253 he had grants of free warren at Dunster, Whichford and Ottery, and licence to hunt hare, fox, cat and badger in Somerset and one other county.
He married, 1stly, Hawise (h). He married, 2ndly, in or before 1243, Isabel, the childless widow of Sir Gilbert BASSET, and daughter of William (DE FERRERS), EARL OF DERBY, by his 1st wife (to whom she was coheir), Sibyl, daughter and eventually coheir of William (MARSHAL), EARL OF PEMBROKE. He died 20 January 1257/8, at Tor Mohun in Devon, and was buried at Newenham in front of the high altar, on the left-hand side. His widow died before 26 November 1260, when the writ to the escheator issued. [Complete Peerage IX:20, XIV:478, (transcribed by Dave Utzinger)]
(h) She was apparently daughter of Geoffrey FitzPiers, Earl of Essex. The author of "Dunster" suggested that she was daughter, and possibly heir, of William Fleming, but after examination of documents cited in the account of Streatley given in VCH, Berkshire, he now inclines to credit the older view as above. A deed executed by her as Domina Hawise de Mohun is copied in the Pole MS.
Note: At least for one daughter, Burke's Peerage has Hawise, daughter of William Fleming, as the mother. It may be incorrect, but maybe there were two Hawises as his first wives.