Li Longji was the son of Li Dan, Emperor Ruizong of Tang Dynasty.
Li Longji passed the throne to his third son, Li Heng, who later became Emperor Suzong of the Tang Dynasty.
Li Longji and Princess Taiping were aunt and nephew. Li Longji was the third child of Princess Taiping's brother, Prince Xiang Li Dan, so Princess Taiping was Li Longji's aunt. They launched a palace coup together during Tang Long's coup. Li Longji successfully seized power, and Princess Taiping's power was also strengthened. However, Princess Taiping was later dissatisfied with Li Longji's power and planned to seize the throne, but was eventually eliminated by Li Longji. After Li Longji became the emperor of the Tang Dynasty, he ordered Princess Taiping to die. As for why Li Longji wanted to kill Princess Taiping and all her sons, the literature did not provide a clear answer.
Li Hong was the son of Tang Gaozong, Li Zhi, and Wu Zetian.
Li Ke was the son of Li Shimin, Emperor Taizong of the Tang Dynasty.
In the novel's glorious years, Wang Li was not the son but his father's colleague.
Li Longji had a total of 29 daughters, some of which were named Princess Xianyi, Princess Changshan, Princess Guangning, Princess Yongmu, Princess Changfen, Princess Xiaochang, Princess Tangchang, Princess Lingchang, Princess Wan'an, Princess Shangxian, Princess Huaisi, Princess Jin, Princess Xinchang, Princess Linjin, Princess Weiguo, Princess Zhenyang, Princess Xincheng, Princess Chu, Princess Changle, Princess Yongning, etc.
Li Longji had a very good relationship with his elder brother, Li Xian. When Li Longji wrote letters to Li Xian, he addressed himself as " Brother Longji ", expressing his respect and closeness to his elder brother. Li Longji even conferred Li Xian the title of " Emperor Rang " to express his feelings for his brother. Li Xian was also very concerned about Li Longji. When he was sick, Xuanzong ordered the imperial doctor to treat him. On his birthday, Xuanzong personally came to congratulate him. After Li Xian's death, Xuanzong could not help but cry loudly and praise Li Xian's filial piety and benevolence. The relationship between the brothers was hailed as the model of royal brothers in later generations.
Li Longji had a very good relationship with his elder brother, Li Xian. Li Longji was full of respect and closeness to Li Xian, and even conferred the title of "Emperor Rang" on Li Xian to express his feelings for his brother. Li Xian was also very concerned about Li Longji. However, the search results did not provide any more information about their specific situation and interactions.