son of Hugh of Morwick (I) (d.1187), king's dapifer and baron of Chevington. married Sybilla, daughter of Richard de Umfraville; had an illegitimate brother, Richard of Morwick of Acton. With Sybilla, had one son, Hugh (d.1269) and an illegitimate daughter, Theophania. (Hedley, Northumberland Families, 30-31)