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
Rokeby Venus codes of pictorial decorum would not easily permit a known lady to be painted in this way". For Spaniards of the 17th century, the issue of the nude in art was tied up with concepts of morality, power, and aesthetics. This attitude is reflected in the literature of the Spanish Golden Age, in works such as Lope de Vega's play "La quinta de Florencia", which features an aristocrat who commits rape after viewing a scantily clad figure in a mythological painting by Michelangelo. In 1632, an anonymous pamphlet—attributed to the Portuguese Francisco de Braganza—was published with the title "A copy