The figure on the pedestal is a copy after the Callipygian Venus, an immensely popular antique sculpture in the 18th Century. The sculpture, a heavily restored copy of a Hellenistic original, is recorded for the first time in the Palazzo Farnese in 1556, where it remained until the second half of the 18th Century. The sculpture was then moved to the Farnesina, and in 1767 the decision was made to take it to Naples. The move only finally happened in 1792, and it still remains there to this day, F. Haskell and N. Penny, Taste and the Antique, New Haven, 1981, no. 83, fig. 168.
A similar view of a temple interior was sold in Paris, Hôtel Drouot, 4 November 1970, lot 114, illustrated