Breed of long-haired toy dog developed in ancient China, where it was held sacred and was kept in Peking's Imperial Palace. Looting English forces introduced the breed to the West in 1860. Known as the lion dog for its full mane but perhaps also for its courage, it stands 6–9 in. (15–23 cm) and weighs up to 14 lbs (6.5 kg). It has hanging ears, a short, wrinkled muzzle, and a black mask across the face. The coat may be solid or variegated. Chinese royalty carried very small Pekingese, called sleeve dogs, in their sleeves.