《明史·志·卷四十九》
因为这个缘故监官不得在中鹿设座，从中门出入。二十四年，重新制定国子监品级、人数。
二十四年，更定国子监品秩、员数。
Because of this, supervisory officials were not allowed to set up seats in Zhonglu or enter and exit from the middle gate. In the 24th year, the grades and number of people in the Imperial College were redefined.