Las Meninas
Velázquez's "Las Meninas" has served as inspiration not only to Picasso. The first follower of Velázquez was certainly his son-in-law Juan Bautista del Mazo, appointed court painter to Philip IV of Spain in 1661. In the "portrait of the Infanta Margarita of Spain", 1666, in the backplane, one can see the placement of "Charles II" and the dwarf Mari Bárbola in a scene similar to "Las Meninas" by Velázquez. Here is a list of works by artists who also have versioned "Las Meninas" throughout art history.