Bennett was knighted by King James I on 26 July 1603 and in 1604 he was elected Alderman of Lime Street Ward, serving until 1612. He was President of the Royal Bethlem and Bridewell Hospitals from 1606 to 1613 and in 1610 became Master Mercer again. In 1612 he transferred as Alderman for Bassishaw Ward which he represented until 1627. He was also President of St Bartholomew's Hospital from 1623 until his death on 20 February 1627.[1]
His daughter Mary married Richard Lewknor and had Sir John Lewknor (1623–1669) who married Anne (d. 1704), daughter George Mynne of Abisham in Surrey and the second cousin of Nicholas Mynne. Anne married secondly Sir William Morley.[5][6]