A gentleman copyholder on the Lincolnshire estates of the Lords Sheffield by 1564, Sheffield’s father was charged to provide a light horseman for the defence of the county in 1585. His relationship to his noble patron has not been resolved, but links were strengthened by his marriage to Margaret Frodsham of Cheshire, whose aunt had served the dowager Lady Sheffield in the 1580s.
Sheffield is sometimes confused with a namesake, one of lord president Sheffield’s sons, who was dubbed knight of the Bath in 1610 and drowned crossing the Ouse on 3 Dec. 1614: this man’s widow subsequently married Sheffield’s son William*. Sheffield himself died during the summer of 1615; letters of administration were granted to his widow and son at York on 7 November.
