"Gainsborough’s ‘Lady Angelica du Lac.’"
Portrait of Mrs. Thomas Graham
Public DomainPortrait of Mrs. Thomas Graham - Credit: Thomas Gainsborough

Thomas Gainsborough (1727-1788) was an English artist famous for his portraits.

The painting 'Lady Angelica du Lac' does not exist, but Wharton may have been inspired by a portrait such as that of Mrs. Thomas Graham.