The King Charles Spaniel (also known as the English Toy Spaniel) is a small dog breed of the spaniel type. In 1903, the Kennel Club combined four separate toy spaniel breeds under this single title. The other varieties merged into this breed were the Blenheim, Ruby and Prince Charles Spaniels, each of which contributed one of the four colours available in the breed. They may share a common ancestry with the Pekingese and Japanese Chin. Toy spaniels and Pugs were featured in both group portraits and satirical works by William Hogarth. Toy spaniels were still popular with the upper classes as ladies' dogs, despite the introduction of the Pug; both Thomas Gainsborough's portrait of Queen Charlotte from 1781 and George Romney's 1782 Lady Hamilton as Nature feature toy spaniels with their mistresses.