《资治通鉴·晋纪·晋纪二十六》
太元五年春季，正月，前秦王苻坚又任命北海公苻重为镇北大将军，镇守蓟城。
烈宗孝武皇帝上之中太元五年春，正月，秦王坚复以北海公重为镇北大将军，镇蓟。
In the spring of the fifth year of Taiyuan’s reign, in the first month, the king of Former Qin, Fu Jian, appointed Beihai Duke Fu Zhong as General of Great Tranquility in the North, stationed at Jicheng.