The Common Law Procedure Acts 1854 and 1855 led to his resignation from the Exchequer in disgust, but his reputation was such that the government recalled him by granting him a life peerage, that of Baron Wensleydale, of Wensleydale, in the North Riding of Yorkshire on 16 January 1856. There was a question at the time of whether the letters patent, which granted him a peerage "for the term of his natural life", allowed him to sit in the House of Lords; it was eventually decided that they did not, and a second set was issued with the usual form for Baron Wensleydale, of Walton, in the County Palatine of Lancaster on 23 July 1856. This was irrelevant, since he had no sons able to take the peerage even if it was not a life appointment. He sat as part of the Appellate Committee of the House of Lords until his death on 25 February 1868.