Ham Long Pagoda (Pagoda of the Dragon's Jaw). In Nam Son village, Que Vo district, Bac Ninh, built on a mount which affects the form of a dragon, therefrom its name. According to a legend, the Thuong Si (Buddhisatva) Trinh Thap (XVIIIth century) refusing the hand of a Le princess, entered religion. He had stayed at Yen Tu before coming here. The beauty of the site is celebrated by poets of numerous generations, among them the scholar Le Quy Don.
The pagoda occupied 2 mau and sheltered in its garden a building of 100 compartments. There are only 12 stupas left, one of them in stone 8m high, built in 1733, containing relics of Trinh Thap. In the hall of the Patriarchs' altar, there are 5 bronze statues of human size, one of which is supposed 1o be that of Trinh Thap.