In the Eastern Han, the Grand Commandant, the Minister over the Masses and the Minister of Works were together called the Three Excellencies.
Tips
culture
The idiom 司空见惯 'commonplace' comes from a Tang poem by 刘禹锡: at a lavish banquet he wrote that his host, a 司空, had seen such scenes so often that they meant nothing to him.
usage
As a surname, 司空 is one of the few two-character surnames, borne by the late Tang poet and critic 司空图.
