唐昭宗李晔继位以后,朝官崔胤与宦官韩全诲等人闹得势不两立,斗争得非常厉害。为了在势力上压倒对方,他们于是各结藩镇为援。《旧唐书·昭宗记》载:“时中尉韩全诲及北司,与茂贞相善;宰相崔胤,与朱全忠相善,四人各为表里。全忠欲迁 After Tang Zhaosong Li Ye succeeded to the throne, Cui Yin, a court officer, and Han Quanhua, a member of the eunuch, became irreconcilable and struggles very hard. In order to overpower each other on the forces, they then became allied tribesmen. ”The old Tang Zhaozong Ji“ contains: ”When the lieutenant Hanquan Hui and North Division, and Maizhen Xiangshan; Prime Minister Cui Yin, and Zhu Quanzhong good, four for each table.