Rokeby Venus been cited as sources of inspiration for Velázquez. The nude Venuses of the Italian painters, such as Giorgione's "Sleeping Venus" (c. 1510) and Titian's "Venus of Urbino" (1538), were the main precedents. In this work, Velázquez combined two established poses for Venus: recumbent on a couch or a bed, and gazing at a mirror. She is often described as looking at herself on the mirror, although this is physically impossible since viewers can see her face reflected in their direction. This phenomenon is known as the Venus effect. In a number of ways the painting represents a pictorial departure, through
Ralph Rokeby (died 1596) Rokeby represented Huntingdon in the English Parliament of 1571, and has been tentatively identified with this man. However, there is no firm evidence for this identification, and it is equally likely to have been his relative, Ralph Rokeby (died 1595), a lawyer and historian. Ralph Rokeby (died 1596) Ralph Rokeby (c.1527–1596) was an English barrister and judge who held high office in Ireland. He was born at Mortham in Yorkshire, the second son of Thomas Rokeby and his wife Jane Constable; Jane was the daughter of Sir Robert Constable of Cliffe, Selby, who was executed in 1537 for his part