Muang Sua

Muang Sua was a Lao principality on the upper Mekong, at the site of later Luang Prabang. In 1337 Panya Khamphong ruled there, having secured power with Mongol backing.

Prince Fa Ngum fled to Angkor. In 1349 he returned with a ten-thousand-strong Khmer army and reunited the Lao principalities over six years; in 1354 he was crowned king of Lan Xang at Vientiane, with Muang Sua as its capital. In 1373 his court exiled him and his son Samsenethai succeeded him.