17. William de Brereton (William de , William de , Ralph de , William de , Ralph de , William de , Ralph de ).
William married Margery Bosley daughter of Richard de Bosley and Jane Fulford.
They had the following children:
+ 23 M i William de Brereton. 24 F ii Margaret Brereton. Margaret married Henry Delves. 25 M iii John de Brereton. 26 M iv Ralph Brereton. 27 M v Robert de Brereton. 28 M vi Hugh de Brereton. 29 F vii Jane Brereton. Jane married Adam de Bostock.
19. Nicholas de Brereton (William de , William de , Ralph de , William de , Ralph de , William de , Ralph de ).
He had the following children:
30 M i John Brereton. 31 M ii William de Brereton.