Sheffield’s ancestors acquired property in the Isle of Axholme under Edward I, and first represented Lincolnshire in 1442. Sir Robert Sheffield was Speaker in 1508 and 1510, and on the accession of Edward VI the family was raised to the peerage.
At the election to James I’s first Parliament, Sheffield was returned for Lincolnshire, which he had previously represented in 1601. His only mention in the records of the first session was as part of the delegation sent by the Commons to thank the king following the resolution of the Buckinghamshire election dispute (12 Apr. 1604).
Towards the end of 1607 Sheffield seems to have gone abroad with his brothers, their father having first consulted the 1st earl of Salisbury (Robert Cecil†) about the safety of their prospective journey.
Sheffield did not stand at the general election in 1614, but perhaps supported his wife’s brother-in-law, Sir Thomas Monson*, in an unsuccessful bid to represent the county. On 3 Dec. Sheffield drowned with two of his brothers while crossing the flooded Ouse at Whitgift Ferry. It was reported that ‘the ferrymen were drunk, and fell so ill-favourably to their labour that the boat was overwhelmed’.
