Zheng Zhong

Zheng Zhong, courtesy name Jichan (季產) or Jiping (季平), was the first Han dynasty eunuch with real power in government, thanks to the trust that Emperor He had in him for his contributions in overthrowing the clan of Empress Dowager Dou, particularly her autocratic brother Dou Xian. He was also a close associate of Emperor He's wife Empress Deng Sui and continued to be dominant after Emperor He's death, during her regency over his son Emperor Shang and Emperor An. He was also the first Eastern Han dynasty eunuch to be created a marquess.