Rokeby Venus as well as classical sculptures known to Velázquez, of which casts were made for Madrid. These were the "Sleeping Ariadne" now in the Pitti Palace, but then in Rome, of which Velázquez ordered a cast for the Royal collection in 1650–51, and the Borghese Hermaphroditus, a sleeping hermaphrodite (picture to the right above), now in the Louvre, of which a cast was sent to Madrid, and which also emphasises the curve from hip to waist. However, the combination of elements in Velázquez's composition was original. The "Rokeby Venus" may have been intended as a pendant to a sixteenth-century Venetian painting
Rokeby Venus by the artist are recorded in 17th-century Spanish inventories. Two were mentioned in the Royal collection, but may have been lost in the 1734 fire that destroyed the main Royal Palace of Madrid. A further one was recorded in the collection of Domingo Guerra Coronel. These records mention "a reclining Venus", "Venus and Adonis", and a "Psyche and Cupid". Although the work is widely thought to have been painted from life, the identity of the model is subject to much speculation. In contemporary Spain it was acceptable for artists to employ male nude models for studies; however, the use of