New Book of Tang: Xuanzong reached Bingzhou and renamed it the Northern Capital.; Zizhi Tongjian: In January 723 (Jisi day), the imperial carriage…
Xuanzong reached Bingzhou and renamed it the Northern Capital.
辛卯，次幷州，改幷州為北都
Location: 新唐書 卷005 睿宗·玄宗 開元11年1月
In January 723 (Jisi day), the imperial carriage leaves Dongdu on the northern tour; on Gengchen day it reaches Luzhou and exempts the people from five years of corvée; on Xinmao day it reaches Bingzhou, sets up a northern capital there, and makes Bingzhou the Taiyuan Prefecture; in February (Wushen day) it returns to Jinzhou.
春，正月，己巳，車駕自東都北巡；庚辰，至潞州，給復五年；辛卯，至并州，置北都，以并州為太原府，刺史為尹；二月，戊申，還至晉州。
Location: 권212 723년 항
Place: 太原
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