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
Thomas de Rokeby (died 1356) the son of Thomas de Rokeby, who died in 1318 (some sources name his father as Alexander). His nephew, also named Thomas, was closely associated with him in his later years and the elder Thomas was often called "l'oncle" to distinguish him from his nephew. It was almost certainly the nephew, not the uncle, who was the grandfather of the second Sir Thomas de Rokeby, who died after 1423. Rokeby first came to public attention in 1327 when, after his return from having been a prisoner in Scotland, he received the thanks of the new King Edward III, for being