Supreme deity of the folk-Daoist pantheon; Lord of Heaven in the institutionalized Tang-Song imperial-state religious framework. The Jade Emperor presides over the celestial bureaucracy that mirrors the imperial-state administration — Heaven's Court is structured as the Chinese imperial bureaucracy with celestial officials, regional administrators, and ranked deities reporting to the Jade Emperor. Tang-period institutionalization by Emperor Xuanzong (713-756 CE) elevated the figure from local-folk-religion to imperial-state pantheon supremacy; the Song-period elaborated the celestial-bureaucracy framework. The Jade Emperor's birthday on the 9th day of the 1st lunar month (Tian Gong Sheng) is one of the major festivals of the Chinese folk-Daoist calendar, widely observed in Taiwan, Singapore, Malaysia, and other diaspora communities. The figure exists in productive tension with the older Heaven (Tian) abstraction of the Zhou-Confucian frame and with the Three-Pure-Ones (San Qing) Daoist-cosmological-supreme triad — the Jade Emperor is supreme in folk-Daoist pantheonic-administrative practice while the Three-Pure-Ones are theologically-cosmologically prior in formal Daoist theology.