Souvenir of Velázquez probably dates from 1876. According to the Pennells, 'Greaves went with him to an Old Masters show at the Academy where they saw the Philip on horseback as Greaves called it - evidently the Olivarez or the Don Baltasar.' 1 This was probably the equestrian portrait of Don Gaspar de Guzmán (1587–1645), Count-Duke of Olivares (Metropolitan Museum, New York), which was owned in Whistler's time by the Duke of Elgin, and exhibited at the Winter Exhibition of the Royal Academy in 1876.

Souvenir of Velázquez, Private Collection

It is fully catalogued in MacDonald 1995 (cat. rais.) [more] (cat. no. 653).