Leigh’s father claimed descent from the family of High Leigh, Cheshire, but the connection is obscure and may have been fabricated.
Leigh inherited very little at his father’s death in 1571, as most of the family estates were held by his mother as her jointure; his stepfather, Richard Scholey, therefore obtained his wardship for an annual rent of only £6.
Unlike his father, Leigh was never a member of the Bedford corporation, and given that he did not inherit his Bedfordshire estates until a few months before the 1604 election, it is not surprising that he did not represent the borough until 1614. By then he was able to exercise some influence over the corporation as one of the town’s magistrates, but it is likely that his return also relied on the willingness of the former MP, alderman Thomas Hawes*, and the deputy recorder, Edward Rolt, to waive any claims they might have had to the seat. At Westminster, Leigh was named to the committee for the bill modifying two earlier statutes for the regulation of alehouses (31 May), and as a Bedford burgess he was entitled to attend the committee for the bill to allow Sir Edward Montagu* and other trustees to sell the manor of Fletton, Huntingdonshire (19 May).
Leigh probably disposed of his Kentish estate before his death. In his will of 20 Jan. 1620 he augmented his wife’s 400-acre jointure estate at Cranfield, Bedfordshire by allowing her a lease of Caldwell Priory during her widowhood, albeit charged with annuities to their two sons. He died at Caldwell on 25 Mar. 1620 and was buried in St. Mary’s, Bedford on the following day.
