Nine Ministers
While eight of the Nine Ministers could be of commoner origin, the post of Minister of the Imperial Clan ("Zongzheng" 宗正), also known as the Director of the Imperial Clan, was always occupied by a member of the imperial family. He oversaw the imperial court's interactions with the empire's nobility and extended imperial family, such as granting fiefs and titles. His ministry was responsible for record-keeping of all nobles, a register being updated at the beginning of each year. When a serious infraction was committed by a member of the imperial family, the Minister of the Imperial Clan was the first high official to be notified before the emperor, who made the ultimate decision about any possible legal action. This minister's subordinates heard grievances of imperial family members and informed them about new ordinances. Unlike kings and marquesses, who were not responsible to any of the Nine Ministers, imperial princesses and their fiefs were kept under surveillance by the Minister of the Imperial Clan.