Edward Smith Stanley (1752–1834), Twelfth Earl of Derby, Elizabeth, Countess of Derby (Lady Elizabeth Hamilton, 1753–1797), and Their Son (Edward Smith Stanley, 1775–1851)
Angelica Kauffmann · ca. 1776 · Oil on canvas

Image courtesy of The Metropolitan Museum of Art.
Available as a made-to-order museum-quality canvas print: stretched or framed.