Pelham’s family originated in Sussex. His grandfather, a younger son, was a distinguished Elizabethan soldier who began buying land in Lincolnshire in about 1565 and rapidly built up a substantial estate.
Pelham was never called to the bar, but retained his chambers in Gray’s Inn, and acted as legal adviser to both Manners and the 1st earl of Lindsey.
During the debate on the most appropriate way of presenting the Petition of Right to the king (27 May), Pelham opposed the suggestion of turning into a bill, since ‘if we go that way, the king cannot in honour accept it’.
On the death of his father in 1629, Pelham inherited Newstead Abbey, which he re-let to his brother, Sir William, for £60 a year.
