Georges-Louis Leclerc, Comte de Buffon
In the 17th century, toy spaniels began to feature in paintings by Dutch artists such as Caspar Netscher and Peter Paul Rubens. Spanish artists, including Juan de Valdés Leal and Diego Velázquez, also depicted them; in the Spanish works, the dogs were tricolour, black and white or entirely white. French naturalist Georges-Louis Leclerc, Comte de Buffon would later describe these types of dogs as crosses between spaniels and Pugs.