《辽史·本纪·卷十八》
三月初五，任命秦王萧孝穆为北院枢密使，改封为吴王，任命晋王萧孝先为南京留守。
三月戊寅，以秦王萧孝穆为北院枢密使，徙封吴王；晋王萧孝先为南京留守。
On the 5th of the third month, Prince of Qin Xiao Xiaomu was appointed as the Northern Imperial Army Privy Councilor and invested as the Prince of Wu. Prince of Jin Xiao Xiaoxian was appointed as the Nanjing 留守.