《明史·志·卷六十五》
从午门到承天门左右两边，及左长安门、右长安门，至皇城的东面、西面，属于旗手、济阳、济川、府军以及虎贲右、金吾前、燕山前、羽林前八个卫。
自午门达承天门左右，逮长安左右门，至皇城东西，属旗手、济阳、济川、府军及虎贲右、金吾前、燕山前、羽林前八卫。
From the Meridian Gate to the Gate of Heavenly Purity, and on either side from the Western and Eastern Chang'an Gates, around to the east, west, and south walls, these areas belonged to the Banner Guard, Jinyang Wing, Jichuan Wing, Fuxian Army, Tiger and Leopard Right, Imperial Right, Yanshan Right, and Imperial Flying Cavalry Right.