William le Belward de Malpas was born circa 1085 in England to John le Belward (c1050-) . He married Mabel d'Avranches (c1095-) .
"In Domesday Book, which, by the Conquerer's order, contains a survey of all England, except the four counties of Westmoreland, Cumberland, Northumberland and Durham, it is testified that Robert Fitz-Hugh, baron of Malpas, held the manor of Calmundelei (vulgo Cholmondeley), and twenty-nine others, in Cestreshire or Cheshire, which are therein specified.
But the said Robert dying S.M.P. (sans male posterity), his interest in the barony of Malpas devolved on his only dauther Lettice, married to William, son of John le Belward, who lived in the time of William Rufus, and by him (who was living 12th Henry I.) had William le Belward de Malpas, possessed in her right of half the barony of Malpas, who married Beatrix, a natural daughter, as presumed, of Hugh Kivilioc, the fifth earl of Chester, and by her had issue three sons; viz. David, of whom hereafter, Robert, who having the lordship of Calmundelei or Cholmondeley, by gift of his father, and fixing his residence there, assumed that surname, which spreading and flourishing descendants have ever since retained, of whom the chief is the present earl Cholmondley; and Richard, the third son, was seated at Duckenton."
--The dormant and extinct baronage of England: or, An historical and genealogical account of the lives, public employments, and most memorable actions of the English nobility who have flourished from the Norman conquest to ... 1806[-1837] by Thomas Christopher Banks
There seems to be some confusion with this generation
and the next. Further research is required.
Children
| Name | Birth | Death | Joined with |
| William de Malpas (c1124-) | 1124 England | Tanghurst of Chester (c1125-) Lettitia FitzHugh (c1138-) | |
Siblings
| Name | Birth | Death | Joined with |
| William de Malpas (c1085-) | 1085 England | Mabel d'Avranches (c1095-) | |