As the front entrance to the summer palace , it is composed of three gateways , and the middle one , also called imperial gateway , was reserved for emperor and empress 东宫门是颐和园的正门，正中设三门洞，中门专门为帝后出入，又称“御路门” 。
5.
The opening in the center was for the emperor and empress exclusively . the two side openings were for the use of princes and court officials . eunuchs and soldiers used side gates to the south and north 东宫门颐和园正门，门为三明两暗的庑殿式建筑，中间正门供帝后出入，称为“御路” ，两边门洞供王公大苫出入，太监兵卒从南门北两侧边门出入。
