Li Chen of the Tang Dynasty was not an emperor.
Emperors of the Tang Dynasty:
Tang Gaozu Li Yuan, Tang Taizong Li Shimin, Tang Gaozong Li Zhi, Tang Zhongzong Li Xian, Tang Ruizong Li Dan, Wu Zetian, Tang Xuanzong Li Longji, Tang Suzong Li Heng , Tang Daizong Li Yu, Tang Dezong Li Shi, Tang Shunzong Li Song, Tang Xianzong Li Chun, Tang Mu Zong Li Heng, Tang Jingzong Li Zhan, Tang Wenzong Li Ang, Tang Wuzong Li Yan, Tang Xuanzong Li Chen, Tang Yizong Li Min, Tang Xizong Li Xuan, Li Ye, Emperor Zhaozong of Tang Dynasty, and Li Jie, Emperor Ai of Tang Dynasty.
Extended information:
The Tang Dynasty accepted exchanges and studies from all countries, and the economy, society, culture, and art showed characteristics of diversity and openness, including poetry, calligraphy, painting, music, etc. A large number of famous people emerged, such as the poet Li Bai, the poet Du Fu, the poet Bai Juyi, the calligrapher Yan Zhenqing, the painter Wu Daozi, the musician Li Guinian, etc.
The Tang Dynasty was one of the most powerful countries in the world at that time. Its reputation spread far and wide, and it had contacts with Asian and European countries. After the Tang Dynasty, Chinese people were often called "Tang people" overseas.
1. Li Hong was the eldest son and prince of Emperor Gaozong of the Tang Dynasty, but he died before his father. Emperor Gaozong gave him the posthumous title of "Filial Piety to the Emperor". During the reign of Zhongzong of the Tang Dynasty, he was honored as Yi Zong. During the reign of Emperor Ruizong, the temple title was cancelled. The posthumous title was retained in honor of the emperor and moved to Luoyang for worship.
2. Empress Wu came to the court to take the throne.
3. Li Yu was the eldest son and crown prince of Emperor Zhaozong of Tang Dynasty. In November 900, the eunuchs Liu Jishu, Wang Zhongxian and others launched a coup and imprisoned Tang Zhaozong, Empress He and their concubines, forcing Zhaozong to pass the throne to Li Yu and change his name to Li Zhen. The imprisoned Zhaozong and the empress were nominally honored as the Supreme Emperor and the Supreme Empress. .
In the first month of the following year, Zhaozong was restored to power, and Li Yu was changed back to his original name and demoted to King De (later changed to King Pu). In 905, Zhu Quanzhong killed nine brothers including Li Yu.
4. The existence and time of birth and death of Li Er are controversial.
Baidu Encyclopedia-Tang Dynasty
Baidu Encyclopedia-Emperors of Tang Dynasty