The Pyrenean Mountain Dog, known as the Great Pyrenees in North America, is a large breed of dog used as a livestock guardian dog. It should not be confused with the Pyrenean Mastiff. The Great Pyrenees is a very old breed that has been used for hundreds of years by shepherds, including those of the Basque people, who inhabit parts of the region in and around the Pyrenees Mountains of southern France and northern Spain. One of the first descriptions of the breed dates from 1407, and from 1675 the breed was a favorite of The Grand Dauphin and other members of the French aristocracy. By the early nineteenth century there was a thriving market for the dogs in mountain towns, from where they would be taken to other parts of France. It was developed to be agile in order to guard sheep on steep, mountainous slopes. As late as 1874 the breed was not completely standardized in appearance, with two major sub-types recorded, the Western and the Eastern.