Li Longji was born in August of the first year of Emperor Taizong (685) in Luoyang, the eastern capital. He is clever, decisive and versatile. Familiar with temperament, dignified and beautiful appearance. At the beginning, he was named King Chu, and later he was named King Linzi. He has served as Wei Wei, Lu Zhou (now Changzhi, Shanxi) and other posts.
In the first year of Tang Long (7 10), Li Longji and Princess Taiping jointly launched the "Tang Long Political Rebellion" to destroy the Wei Hou Group. In the first year of his birth (7 12), Li Dan Zen was located in Li Longji, and Li Longji ascended the throne in Chang 'an Taiji Palace.
In the early days of the reign of Emperor Xuanzong of Tang Dynasty, he made great achievements in politics. He was diligent in political affairs and took various measures to consolidate and develop the Tang regime. Emperor Xuanzong of the Tang Dynasty paid attention to bringing order out of chaos, appointed sages such as Yao Chong and Song Jing, and made great efforts to govern the country, thus creating a prosperous era of the Tang Dynasty-Kaiyuan.
However, in the later period of his rule, he gradually ignored state affairs and supported treacherous court officials Li and Yang. The love for Yang Guifei, coupled with policy mistakes, and the reuse of An Lushan and other ethnic groups beyond the Great Wall, tried to stabilize the frontiers of the Tang Dynasty, which led to the eight-year Anshi Rebellion and laid the foundation for the decline of the Tang Dynasty. In the fifteenth year of Tianbao (756), Prince Hengli ascended the throne, honoring him as the emperor's father.
In the first year of Baoying (762), he died in the Shenlong Hall in Chang 'an at the age of 78, and was buried in Jinsu Mountain, named Tailing. Temple name Xuanzong, and because of its posthumous title as the most holy, Daming, filial emperor, Emperor Kangxi's name was taboo in the Qing Dynasty, often called Tang, and was honored as the Kaiyuan emperor.
Extended data:
Yang Yuhuan, the favorite princess of Emperor Xuanzong of the Tang Dynasty, has the beauty of the whole country, is born with beauty, is proficient in melody, can sing and dance, and is good at playing pipa. So Tang Xuanzong loved her very much.
Yang Yuhuan was born in an official family, and his father, Yang Xuanyan, is a manager in Zhou Shu. She is the son of Emperor Xuanzong of the Tang Dynasty, the first princess Li Mao. After being ordered to become a monk, she was canonized as a imperial concubine by Li Longji, Emperor Xuanzong of the Tang Dynasty.
In the 15th year of Tianbao (756), An Lushan rebelled, followed Li Longji out of Yanmenguan Chang 'an and went into exile in Shu, passing through Maweigang, where Yang Yuhuan died on June 14th (Gregorian calendar 15).
Baidu Encyclopedia-Tang Xuanzong
Baidu Encyclopedia-Yang Yuhuan