Gao Lishi
The eunuchs first gained political influence as a group when Gao Lishi helped Emperor Xuanzong in his rise in power. Later, Li Fuguo also helped to put Su-zong on his throne. By gaining royal patronage eunuchs gradually controlled personal access to the emperors and participated in the business of the central government. They also involved themselves with provincial appointments, at times, even intervening with armed forces in disputes over imperial successions. By the time of Li Shangyin, the emperors had allowed the eunuchs to become fully entrenched both militarily and politically. After Xianzong, all Tang emperors (except Jingzong) were put on the throne by the eunuchs.