“Bromley: Midlands family history, and the search for the Leicestershire Origins.” By Ian Bromley. Page 31. GoogleBooks
https://fmg.ac/Projects/MedLands/ENGLISHNOBILITYMEDIEVAL3.htm b) THOMAS Basset [II] of Headington, Oxfordshire (-1220). " ... m PHILIPPA, daughter of WILLIAM FitzHugh Malbank & his wife ---. The primary source which confirms her parentage and marriage has not yet been identified.