Ten Prized Dogs series, Tibetan Mastiff. Artwork depicting a Tibetan Mastiff from the Qing Dynasty. The Tibetan Mastiff also known as "Do-Khyi" [2] ("dog which may be tied", "dog which may be kept"), reflects its use as a guardian of herds, flocks, tents, villages, monasteries, and palaces, much as the old English ban-dog (also meaning tied dog) ...