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 of a recumbent Venus (which seems to have begun life as a Danaë) in a landscape, in the same pose, but seen from the front. The two were certainly hung together for many years in Spain when in the collection of Gaspar Méndez de Haro, 7th Marquis of Carpio (1629–87); at what point they were initially paired is uncertain. The portrayal of nudes was officially discouraged in 17th-century Spain. Works could be seized or repainting demanded by the Inquisition, and artists who painted licentious or immoral works were often excommunicated, fined, or banished from Spain for a year. However, within