In a post 19 May 1998, Richard Borthwick, citing VCH Yorkshire states that William's wife was Margaret Polglas, daughter of William Polgas by Elizabeth daughter of William Champernoun. HOWEVER, if you see the research done by Ronny Bodine (see notes for Elizabeth Champernoun, wife of William Polglase/Polglas), then you will see that this is IMPOSSIBLE. Margaret, daughter of a 1353 marriage & granddaughter of William Champernoun b. circa 1314, would not have been born by the time that William died (1347); plus Margaret married John Herle.