The pug is a “toy” breed of dog with a wrinkly, short-muzzled face, and curled tail. The breed has a fine, glossy coat that comes in a variety of colors, and a compact square body with well-developed muscle. They have been described, referring to the pug’s personality and small size. Known in ancient China, they may have been responsible for both the modern Pekingese and King Charles spaniel. They have Chinese origins, but were popular in Western Europe by the House of Orange of the Netherlands and the House of Stuart of England, Ireland and Scotland.