| Constituency | Dates |
|---|---|
| Leicester | 1768 – 1784 |
Grey stood for Leicester in 1768 on a joint interest with his friend Eyre Coote, supported by the Rutland interest but against the corporation; they were successful, but the contest was protracted and expensive. In 1774 and 1780 he was returned without a contest. He voted with the Rockinghams but had no influence in the party. He was absent from the division on Shelburne’s peace preliminaries, 18 Feb. 1783; was classed by Robinson as ‘Fox’ and voted for Fox’s East India bill, 27 Nov. 1783. In December 1783 Robinson noted about Leicester: ‘Probably the same Members’; Grey canvassed the borough, but faced with the prospect of an expensive contest and with the loss of the Rutland interest, withdrew. He never stood for Parliament again.
He died 4 Mar. 1802.
