<p>The most important interest at Peterborough was that of the Fitzwilliam family who owned large estates in the neighbourhood and almost invariably returned one Member. But it was ‘by no means ... a commanding interest’;<fn>Matthew Lamb to Ld. Fitzwilliam, 28 Dec. 1767, Fitzwilliam mss, Northants RO.</fn> it always required attention, and was expensive to maintain. Richard Terrick, bishop of Peterborough, wrote to Lord Hardwicke, 6 Oct. 1762:<fn>Add. 35607, f.