The Daming Palace in Chang'an became the seat of government and the royal residence of the Tang dynasty during the reign of Emperor Gaozong.

The Daming Palace was the imperial palace complex of the Tang dynasty, located in its capital Chang'an. It served as the imperial residence of the Tang emperors for more than 220 years. Today, it is designated as a national heritage site of China, and part of the UNESCO World Heritage Site "Silk Roads: the Routes Network of Chang'an-Tianshan Corridor". The area is located northeast of present-day Xi'an, Shaanxi Province.

Chang'an was a city in China, located near the modern city of Xi'an, which served as the capital of several Chinese dynasties from 202 BCE to 907 CE. The site has been inhabited since Neolithic times, during which the Yangshao culture was established in Banpo, in what is now the city's suburbs. Furthermore, in the northern vicinity of modern Xi'an, Qin Shi Huang of the Qin dynasty, China's first emperor, held his imperial court and constructed his massive mausoleum guarded by the Terracotta Army.

The Tang dynasty, or the Tang Empire, was an imperial dynasty of China that ruled from 618 to 907, with an interregnum between 690 and 705. It was preceded by the Sui dynasty and followed by the Five Dynasties and Ten Kingdoms period. Historians generally regard the Tang as a high point in Chinese civilisation, and a golden age of cosmopolitan culture. Tang territory, acquired through the military campaigns of its early rulers, rivalled that of the Han dynasty.

Emperor Gaozong of Tang, personal name Li Zhi, was the third emperor of the Chinese Tang dynasty, ruling from 649 to 683; after January 665, he handed power over the empire to his second wife Empress Wu, and her decrees were carried out with greater force than the decrees of Emperor Gaozong's. Emperor Gaozong was the youngest son of Emperor Taizong and Empress Zhangsun; his elder brothers were Li Chengqian and Li Tai.