Ge Fuyuan's brother Ge Xiyuan (格希元) served on the staff of Wu Zetian's son Li Xian and participated in Li Xian's project to write commentaries for the Book of Later Han.
Emperor Mozhu of Western Xia (r. 1226–1227), name Li Xian (李睍), Tangut emperor
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Emperor Zhongzong of Tang (656–710), name Li Xian (李顯), Tang Dynasty emperor
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Li Chengqi (679-742), also known as Li Xian (李憲), Tang Dynasty prince, son of Emperor Ruizong
At one point, to observe naming taboo of the name of Emperor Gaozong's second crown prince Li Xian, Liu Qixian changed his name to Liu Jingxian (different character).
He died later that year, and his son Liu Qixian (who later changed his name to Liu Jingxian to observe naming taboo as to Emperor Gaozong's crown prince Li Xian) inherited his title.
Princess Taiping, finding Li Longji difficult to control, began considering trying to replace him as crown prince with one of two nephews with arguable better claims than Li Longji—Li Longji's older brother Li Chengqi the Prince of Song and his cousin Li Shouli the Prince of Bin, the son of Emperor Zhongzong's older brother Li Xián (note different tone), who had been crown prince at one point during Emperor Gaozong's reign.
At that time, Tufan posed a serious threat to Tang's western prefectures, and Emperor Gaozong made his son Li Xian the Prince of Pei nominally the commandant at Liang Prefecture (涼州, roughly modern Wuwei, Gansu) and made Wei his military advisor.
He soon frequently clashed with his aunt Princess Taiping, however, on matters of politics, and Princess Taiping tried to spread the sentiment that Li Longji should not be crown prince, and that his older brother Li Chengqi the Prince of Song, who was born of Empress Liu, or his cousin Li Shouli the Prince of Yong (the son of Emperor Ruizong's older brother Li Xian (note different character than Emperor Zhongzong)) should be crown prince.
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Wu Zetian, while still carrying the title of emperor, was forced to yield the throne to her son Li Xian the Crown Prince (formerly emperor), and Li Xian was restored to the throne as Emperor Zhongzong.
Li Xian | Xian H-6 | Emperor Xian of Han | Liu Xian | Xiao Xian | Xian Y-7 | Xian Xinghai | Xian'an District | Xian | Li Xián | Jia Xian | Gong Xian | Dou Xian |