British (English) School; Philip Stanhope (1673-1726), 3rd Earl of Chesterfield, with His Wife, Lady Elizabeth Savile, Children and Nubian Slave; Barnsley Museum and Heritage Service; http://www.artuk.org/artworks/philip-stanhope-16731726-3rd-earl-of-chesterfield-with-his-wife-lady-elizabeth-savile-children-and-nubian-slave-68681