This is an affectionate, undemanding and easy-to-train family dog. They are excellent with children and the elderly. They are not excessive barkers, but will announce strangers before greeting them warmly. Cavaliers get along with everyone, including cats and other small pets.
In its heyday, this breed was known as a comfort dog, and doctors even wrote prescriptions that called for this little dog as the remedy. The royal name was bestowed during the reign of King Charles II, who was so fond of his spaniels that he could not be parted from them. He made a decree that King Charles Spaniels must be allowed in any public place, including the House of Parliament. This decree is still in the law books today.