Built during the Tibetan Empire after Darub was enfeoffed as a regional king, it served as the political and religious center of eastern Kham.
Its 14-meter central tower, constructed with rammed earth mixed with crushed shells for whitening, houses a 9th-century chapel containing gilt-bronze statues of Padmasambhava, Avalokiteshvara, and King Trisong Detsen.
[2] Walls feature early Tibetan frescoes depicting imperial hunting scenes and tantric mandalas.
[3][4] Notable relics include:[5] Listed as a Fifth-tier Tibet Autonomous Region Cultural Heritage Site [zh] in 2009, the palace underwent stabilization of its southeastern wall in 2018.
On October 7, 2019, the State Council announced it as the eighth batch of National Key Cultural Relics Protection Units.