Hatton inherited his father’s extensive estates in Northamptonshire, including land and ecclesiastical patronage near Peterborough. In January 1625 Hatton was first returned for Peterborough while still a minor at the by-election caused by the elevation of Sir Francis Fane* to the peerage. However, he proved unable to take his seat, as James I’s last Parliament had already been prorogued before he was elected, and was automatically dissolved by the king’s death the following March. Still under age, he was again returned for Peterborough to the first Parliament of the new reign, but left no trace in the records of its debates. In February 1626 he was dubbed a knight of the Bath at Charles I’s coronation. It is not known whether he stood for election to Charles’s second parliament that same year, but if so he failed to find a seat. He was provided with an opening at Clitheroe after his uncle, Thomas Fanshawe I* challenged the return of an unnaturalized Scot, George Kirke, and succeeded in obtaining a new writ. Once again Hatton went unnoticed in the records of the Parliament. He reciprocated Fanshawe’s favour two years later by helping him to buy the manor of Barking, Essex, from the Crown.
It was later said by Roger North† that Hatton ‘diverted himself with the company of players and such idle people that came to him [at Scotland Yard], while his family lived in want at Kirby’.
