see Batemans Buildings in London Addresses dataset
Jno Claude Quetin 15 Batemans Buildings ratebooks 1774 "gone & broke" / John Cluds Quetin = St Martin i t Fields 20.4.1775 Rose Austen botp by lic wits Francois Quetin, Lawrence (Behr?) / Victoire Rosalie Quetin born 31.7 1776 bapt 21.8.1776 St James Picc'y of Jean Claude & Rose / Nicholas Morel = St Luke Chelsea 17.12.1794 Victoire Rosalie Quetin / Nicholas Morel upholsterer, Marlborough St, St James voted 1818 Romilly & Maxwell