In many respects, Cotton followed in the footsteps of his more famous father, Sir Robert, being a client of the Howards, a collector of manuscripts and a Member of the Commons. However, he did not have his father’s influence nor was he prominent in Parliament. During his father’s lifetime he appears to have managed the family estates at Conington as Sir Robert was frequently absent on business in London. In the early 1620s he showed an interest in fen drainage which would continue throughout his life.
Cotton donated £10 towards the Palatinate cause in early 1621.
In 1625 Cotton was again returned for Great Marlow, and also for Morpeth, in Northumberland, which borough was controlled by the lord of the manor, Lord William Howard of Naworth, Cotton’s father-in-law.
Cotton joined his father in petitioning the Privy Council for the Cotton library to be re-opened after its closure by Council order in 1629.
Cotton was more of a landlord than an antiquarian and he continued to run the family estates with diligence and zeal.
