Walter's son, and the next Constable of Gloucester Castle, was Miles FitzWalter of Gloucester, 1st Earl of Hereford (d. 1143) (alias Miles of Gloucester), Sheriff of Gloucestershire, a great magnate based in the west of England who became hereditary Constable of England. He was succeeded as Constable of Gloucester Castle by his eldest son Roger Fitzmiles, 2nd Earl of Hereford (d. 1155). Later it was retained by the Crown.
Walter's son, who succeeded him as Constable of Gloucester Castle, was Miles FitzWalter of Gloucester, 1st Earl of Hereford (d. 1143) (alias Miles of Gloucester), Sheriff of Gloucestershire, a prominent nobleman in western England who became the hereditary Constable of England. He was succeeded by his eldest son Roger Fitzmiles, 2nd Earl of Hereford (d. 1155).