- Born: Abt 1176, Brereton, Cheshire, England
- Marriage: Unknown
- Died: After 1208, England
~Ormerod's History of Chester, Vol. III, p.88, "Brereton and Holt of Brereton" Predigree, William is shown as the son of Wiiliam de Brerton, and the father of Sir Ralph de Brerton, Knight. 713
Noted events in his life were:
• Background Information. 696
About 1194, William de Brereton, son of Ralph II, received a deed at the time of his marriage to Margery, daughter of Randle de Torhaunt, eight witnesses signing the contract. this William was kingithed by Henry III in 1208, the beginning of honors held in the Brereton family for over five hundred years.
~Brereton, a Family History, pg. 9