The Wynnes of Garthewin are an ancient Welsh family, a number of whom bore the Christian name, Robert. The present sitter (c.1732-1798) was born at Gresford, where his grandfather had been vicar. His birth was meticulously recorded by Hugh Lloyd (1688-1749), brother-in-law of Sir George Wynne of Leeswood (1700-56) and Vicar of Mold. (NLW 598E, 273, cited in Baker 1999, p.89, n. 27. 1). Lloyd's 'Daybook' documents his close friendship with the Wynnes of Garthewin and Wilson, fatherless after 1728, also benefited from his interest. Between 1767 and 1772 Robert Wynne enlarged the house at Garthewin built by his eponymous grandfather in about 1710. High Sheriff of Debighshire in 1769, he was later described as a 'cheerful companion, a steady friend, a good neighbour, and a truly honest man.'