The Cavalier King Charles Spaniel is a small bree of dog usually considered one of the toy dog breeds. It is a small spaniel with substantial silky coat of moderate length, often with a mild wave, and long ears. Four colors are recognized. The breed originated in the 20th century, though has its roots in the older King Charles Spaniel of the Restoration. This breed was loved by King Charles the second of England. He passed a law that they were allowed in parliament.