sentences:  He was succeeded by his son Walter I (d.1198) who was succeeded by his son Robert FitzWalter I (d.1235), founder of the family of FitzWalter, who left as heir a minor, his son Walter FitzWalter (1219–1258).Walter's son was Robert FitzWalter II (1247–1326).His son was Robert FitzWalter III (d.1328) who was succeeded by his son John FitzWalter (1315–1361).