A small equestrian statue on a gilded wooden base. The Spanish king, Carlos II (1661-1700) wears epic clothing of Roman character, holding a scepter in his right hand and the reins of his horse in the left. His heroic and powerful posture is strengthened by the rearing position of his steed.

Foggini made various sketches for this work, which he modeled after the Baroque bronze artist, Pietro Tacca's statue of Fernando I of Medici, which is in Livorno. The present work, in turn, was a model for the statues of Carlos III made by the artist's sons, Vincenzo and Giulio Foggini.