 When Mary I came to the throne in July 1553, he used the fact that he had a commission from his relative, the Duke of Northumberland, to raise 4000 infantrymen from Buckinghamshire for the service of Lady Jane Grey to go over in support of Mary.He was rewarded with the Office of Receiver of the honour of Leicester, a parcel of land in the Duchy of Lancaster and being made soon afterwards a Privy Councillor and Master of the Horse.He was MP for Middlesex from 1553 to 1555.