Apprenticed to a London merchant in 1736, Amyand soon set up on his own, and rapidly acquired large interests in the German trade. In 1750 the appointment of his brother Claudius as undersecretary gave him a link with Administration, and in 1754 he was nominated at Barnstaple, where he received £2,000 from secret service funds through his brother’s friend John Clevland ‘to defray all expenses exceeding £1,500’.
In 1761, after a ‘slight opposition’,
In March 1764 Amyand, who had been a director of the East India Company since 1763, and had ‘quarrelled with Sulivan the leader of the faction to oppose Lord Clive, suddenly proposed to give the government of Bengal with powers over their affairs to that lord’.
Amyand’s connexion with Grenville became increasingly close: on 17 Mar. 1765 George Onslow wrote to Newcastle that Grenville was thought by the City to be ‘governed’ by Amyand and Peregrine Cust; and a week later sarcastically described Amyand, Cust, and Touchet as Grenville’s ‘wise counsellors’.
He died 16 Aug. 1766. His friend Sir James Porter wrote:
Sir George is no more. He has left clear £160,000 sterling and perhaps more, this pursuit, keen and arduous, worked the capillaries of the brain, wore them to a filament, distorted their whole construction and dissolved the whole frame at 46.
