The Three Ducal Ministers (Chinese: 三公; pinyin: Sāngōng), also translated as the Three Dukes, Three Excellencies, or the Three Lords, was the collective name for the three highest officials in Ancient China and Imperial China.
When Cao Pi declared himself emperor in late 220, Hua Xin was made Cao Wei's first Minister of the Masses, Jia Xu remained as Grand Commandant, and Wang Lang was made the first Minister of Works.
'management') at the time of the Eastern Han, the Three Ducal Ministers were also called "Sansī" (三司).
[3] During the Han dynasty, civil service officials were classified according to twenty grades (reduced to sixteen after 32 BC), expressed by the official's annual salary in terms of number of dàn (石) or Chinese bushels of grain.
Under this system, the Three Ducal Ministers all held the highest rank of ten-thousand-bushel.