Laroche was a Bristol merchant. His father became closely connected with the Robartes family,
Both his elections at Bodmin were contested. He voted with Opposition on Wilkes’s petition, 27 Jan. 1769; against them on the Middlesex election, 8 May 1769, and again with them on the Address, 9 Jan. 1770; with Administration on Brass Crosby, 27 Mar. 1771, but in Robinson’s first survey on the royal marriage bill he was listed as ‘doubtful, present’. He does not appear in any other division list before 1774 when Robinson classed him as ‘hopeful’; nor in any of the minority lists 1775-8. He voted with Administration on Keppel, 3 Mar. 1779, and continued to support them till he left Parliament. Three speeches by Laroche are reported, but contain nothing of consequence.
After Laroche’s entering Parliament his financial position grew increasingly embarrassed: in May 1774 he mortgaged his wife’s Antiguan estates for £7,000;
After ten years’ interval Laroche stood for Bodmin in 1790 but was defeated. He died September 1804.
