William Mainwaring of Over Peover (d. c.1339)

✓ William Mainwaring of Over Peover, son and heir of Roger; m. Mary Davenport (living 19 Edw. II); children William, Roger, Margery and Millicent, living 1334; d. about 12 or 13 Edw. III. Source: Ormerod, History of the County Palatine and City of Chester (1819), vol. I, pp.369-371 'the descent of the Mainwarings of Over Peover' (Sir Peter Leycester from the Peover evidences, with Sir Thomas Mainwaring's corrections), read 2 Nov 2026 (archive.org djvu text). [DIRECT ANCESTOR OF THE COMPILER: flag added 2 Nov 2026 by walking the tree from Aynsley, so that this marker is reliable and can be searched.]