Methuen was returned for Warwick on the interest of his friend Lord Warwick. He was classed by Jenkinson in the autumn of 1763 as ‘pro’, and does not appear in any of the minority lists 1763-4. Before the debate of 18 Feb. 1764 on general warrants, Warwick wrote to Grenville’s secretary, Charles Lloyd, that ‘had there been any occasion to urge Mr. Methuen for to-morrow he should have done so. Disposed as he is, it would have been offending him, but he may depend that he takes all in the right way, will attend and support’; and on 2 Mar. to Grenville: ‘I flatter myself my friend Mr. Methuen’s conduct has been acceptable to you and approved of.’
He died a commoner 22 Jan. 1795.
