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)

Kauffmann's family portrait of the Earl of Derby, his Countess, and their son from around 1776 is one of her major grand manner portraits, combining the intimate warmth of family portraiture with the compositional ambition of history painting. The Earl of Derby was one of the most prominent peers in England, and a commission from him represented access to the highest levels of British aristocratic patronage. Kauffmann's treatment shows her ability to organize complex multi-figure compositions while maintaining individual psychological character — the earl's authority, the countess's maternal warmth, the child's natural spontaneity — within a unified compositional scheme.

This ambitious group portrait demonstrates the artist's skill in managing a complex three-figure composition within a grand landscape setting, with the rich fabrics and porcelain-smooth flesh tones characteristic of late eighteenth-century English portraiture at its most refined and technically accomplished.