Warden of the Mint Master of the Mint whose jobs was act as a contractor to the crown many wardens advanced later on to become Master of the Mint with some wardens holding both offices at the same time. The most illustrious holder of the office of Warden of the Mint was Isaac Newton, who was warranted to this position on the recommendation of his friend, Montagu, Chancellor of the Exchequer in 1698. In 1699 however, Newton undertook the office of Master of the Mint, which was far more lucrative, as well as potentially more technically challenging. After the death of the final warden
Royal Mint Bristol Castle where he continued minting coins until it fell to parliamentary control on 11 September 1645, effectively ending Bushnell's involvement in the civil war mints. In Southern England in November 1642 the king ordered royalist MP Richard Vyvyan to build one or more mints in Cornwall where he was instructed to mint coins from whatever bullion that could be obtained and deliver it to Ralph Hopton, a commander of royalist troops in the region. Vyvyan built a mint in Truro and became its Master until 1646 when it was captured by parliamentarians. In nearby Exeter which had been under