Christened on 7 October 1720 at the French Huguenot Church of St Martin Orgar in Martin Lane, Cannon Street, London, Lewis Devisme was the fourth child and third son of Philippe de Visme, a successful City merchant, by Marianne de la Mejanelle his wife.
[1] Lewis's father Philippe was a Huguenot refugee who had been born in Gouy L'Hopital in September 1687, third son of Pierre de Visme and Marie Le Roy.
[8] The registers of Holy Trinity Church there prove that one 'Philip Devisme of this parish' was buried in its churchyard on 25 October 1756.
He represented Britain at the Diet of Ratisbon from 1769 until his assignment to the Swedish Court in 1773, where he ranked as Envoy Extraordinary and Minister Plenipotentiary in Stockholm.
The London Gazette noted that Devisme was: "...greatly lamented, having during his Residence here gained the Esteem of all Ranks of People.