In 1766 Osborn approached the Duke of Bedford about standing for Bedfordshire at the general election, but was told that Bedford, ‘being perfectly well satisfied’ with Robert Ongley, would continue to support him.
In 1774 he was transferred to Penryn and returned head of the poll, but in 1780 Robinson wrote in his electoral survey that Osborn wished ‘to come in for a quieter borough’. Attempts were made to find another seat for him, presumably in one of the Isle of Wight boroughs, for on 3 Oct. Robinson wrote to Jenkinson: ‘Lord North has some gentlemen thrown on his hands who must be taken care of, as Sir George Osborn, thrown out by a manoeuvre of Mr. Holmes’s.’
Osborn voted against Shelburne’s peace preliminaries, 18 Feb. 1783, and for Fox’s East India bill, 27 Nov. 1783. But when Pitt took office he deserted North: in January 1784 he was classed by Robinson as ‘doubtful’, and by Stockdale in March as Administration. He did not stand again in 1784. He died 29 June 1818.
