Of obscure origin, Mason was admitted to Lincoln’s Inn at the request of his neighbour George Kingsmill†, and became a close friend of William Noye*, a fellow student whose political views he shared.
Mason leased Willersley warren from the bishop of Winchester in 1608.
Mason succeeded William Savage* as recorder of Winchester in 1627, and bought a large house at the Eastgate. As it was customary for the borough to be represented by its recorder, he was returned to the 1628 Parliament. Hampshire had been one of the counties hardest hit by the introduction of billeting and martial law, and Mason lost no time in presenting his constituents’ complaints. On 8 Apr. he challenged its legality, declaring that ‘martial law may be in time of war in foreign countries where the law of England ceaseth, but here, if the king’s court be open and it be tempore pacis, no martial law can be exercised’.
Clearly no friend to puritanism, Mason wanted the charges against the vicar of Witney to be referred to Convocation, recommending on 9 May ‘that we declare to them that we think him guilty’.
In the 1629 session Mason was named to committees to check the enrolment of the Petition of Right (20 Jan.), to inquire into the case of John Rolle* (22 Jan.), and to consider bills to restrain the begging of forfeitures (23 Jan.) and the sale of judicial office (23 January).
Mason’s final years were prosperous. He acquired a manor in Crondall from the 4th earl of Southampton, probably in part settlement of a debt, and lands in Wiltshire from the 2nd earl of Marlborough (Henry Ley*).
