Muang Thaeng

Muang Thaeng is associated with the broad Mường Thanh valley, a centre of Tai settlement among the mountains of the upper Black River country. In Tai tradition it is linked to Khun Borom, the ancestral figure from whom the rulers of several Tai peoples traced their descent. The local principality formed one of the Sip Song Chau Tai, or twelve Tai domains, whose chiefs dealt with neighbouring powers including Lan Xang and Vietnam.

The later city of Điện Biên Phủ lies here.