He was born in Bordeaux, the son of Mathieu and Jeanne Clarmont, and naturalised in 1724 by an Act of Parliament (No. 5, 11 George I).[4] In 1766, he was also director of the French Protestant Hospital in London.[5]
In 1733, Clarmont married Martha (Marthe) Leglize, daughter and co-heir of Gideon Leglize (Gédéon l'Église).[6] They had one daughter Susanne, born in 1736, and one son, Jean, born in May 1737, who died along with Martha in June 1737.[7][8] He lived at 16, Mincing Lane, London. He died in Bath, Somerset, aged 68.[4]
^ abSelby, Walford Dakin; Harwood, H. W. Forsyth; Murray, Keith W. (1910). The Genealogist. London, England : George Bell & Sons. Retrieved 25 June 2018.