Portrait of two ladies of the Conyngham family, full-length, one seated in a yellow dress, beside a sheep, the other standing beside in a red dress with a shepherdess's crook in a wooded landscape

This double portrait would appear to be a reduced version of a full-length portrait of the sitters, signed and dated by William Wissing and Vandervaart, that was originally at Slane Castle, co. Meath, Ireland, the seat of the Conyngham family, of which there is a photograph in the National Portrait Gallery photographic archive.

Vandervaart arrived in London in 1674 and was an assistant and collaborator to Wissing until the latter's death in 1687, painting principally the landscapes, still-lives and draperies. He set up his own portrait practice in 1687.