C817 The Legend of the Coffin

History of the Great Tang Dynasty recorded that in the nineteenth year of the emperor, Emperor Wen, the princess of the northwest khan, was married to the khan by his wife, Princess Yicheng.

Princess Yicheng lived in the northwest for nearly 30 years, successively for the Yi Min Khan, Beginner Khan, Rokhan, Jelichak Khan's Kadun (second concubine).

For four years