Dogs have a long history of being involved in art. Many artists have included dogs into their works including Picasso, Gaugin, and Lautrec. Dogs are beloved to many artists and their patrons. Going back to the 18th and 19th century, nobleman and royals would have their dog companions immortalized by artists. Even going back to 2008 b.c., there have been paintings on the walls of caves featuring dogs with their owners. Dog paintings have helped authors view and trace dog lineage and breed genealogy through the years.