 The painting is believed to have been painted between 1779 and 1781, and is now in the National Portrait Gallery in London.Zoffany composed the painting in a series of sittings with each of the subjects, to take their separate portraits, but none of his sketches or compositional studies views are known to survive.The first of these sittings took place in November 1779, the last over a year later, and the finished painting was ready to be exhibited by at the Royal Academy's exhibition in Spring 1781.