This small, friendly breed of dog is known for its affectionate and loyal nature. The Cavalier King Charles Spaniel is a popular choice for families due to its gentle and loving temperament. It is an active breed that loves to play and explore, but also enjoys cuddling up
From Wikipedia
The Cavalier King Charles Spaniel (CKCS) is a British breed of toy dog of spaniel type. Four colours are recognised: Blenheim, tricolour (black/white/tan), black and tan, and ruby; the coat is smooth and silky. The lifespan is usually between eight and twelve years.