Lộc Châu
Lộc Châu lies in the hilly border country east of Lạng Sơn, where the Kỳ Cùng River and its tributaries wind through valleys towards the northern frontier. Local Tày families held offices here over generations. In the late seventeenth century Vi Đức Thắng endowed Trung Thiên temple in the Lộc Bình country, leaving a religious foundation associated with one of the region's prominent lineages.