Monique - apologies but my spelling of Camroux was wrong (I should check my posts before hitting submit!). My earliest recorded ancestor there is a Daniel Camroux who lived there in the 17th Century. I can't take any credit for finding this out; the family tree was researched by a lady in Switzerland who is a far distant relative via the Camroux line. She also sent me a wedding record which translated reads thus: There is a wedding engagement between on the one hand - Jean Simon Camroux born in Berlin, son of the late Simon Camroux of Gozarques near Duzes and Anne Claire Laplace of Manheim father and mother,and on the other hand - Susanne Desvaux born in London daughter of the late Pierre Desvaux born in Rouen (old spelling  Rouan) in Haute-Normandie and the late Marie Soif.

This shows the Camroux family came to England via Germany although they seem to have only married within the Huguenot community if I'm reading the record above correctly.

Fascinating information regarding the origin of the name - thank you very much. In my ignorance I have never heard of the Occitan language or the people who spoke it. I'll certainly be looking into that now!