For reasons unclear to history, Meng Chang also ordered that his attendants and people who announced his arrival should refer him as "His Imperial Highness" rather than "the Crown Prince."
This caused major panic at the capital, leading to his father Meng Chang's decision to surrender to Song shortly after, ending Later Shu.
[5] Meanwhile, Meng Xuanzhe was commissioned to be acting Taiwei and military governor of Taining Circuit (泰寧, headquartered in modern Jining, Shandong).
Meng Xuanzhe, in turn, offered as tributes to the emperor 200 horses and saddle decorations made of jade and crystal.
[1] Meng Xuanzhe was later moved to be the military governor of Yongqing Circuit (永清, headquartered in modern Xingtai, Hebei).
(However, he was also said to be overly strict in his tax regulations, causing great burdens on the people of Yongqing's capital Bei Prefecture (貝州).
In the aftermaths of the defeat at You, Emperor Taizong, who suffered a severe leg wound that would eventually lead to his death in 997, was anticipating further Liao incursions, and he ordered Meng to take up defensive position at Dingwu's capital Ding Prefecture (定州) and sent a number of imperial generals to Ding as well to assist him.
[6] When a Liao incursion did occur, Meng and the other imperial generals repelled them at Xu River (徐河), leading to their retreat.
[1] Early in Emperor Taizong's Chunhua era (990-994), Meng became ill, and requested to be moved to a less important prefecture on the Huai River.