Heneage was prominent in society, and a heavy gambler. George Selwyn wrote to Lord Carlisle, 6 Mar. 1782:
At the general election of 1784 he stood for Cricklade, in partnership with Robert Nicholas, as a ‘declared friend’ of Pitt. They were defeated on the poll but seated on petition. He voted with Pitt over parliamentary reform, 18 Apr. 1785, and on Richmond’s fortifications plan, 27 Feb. 1786; but on 1 May 1788 signed the circular calling on country gentlemen to gather into a third force independent both of Pitt and Fox, and during the Regency crisis voted with the Opposition.
Heneage died 26 Feb. 1806.
