Shi Chonggui became the mayor of Kaifeng in 938, so this would have been in 938 or shortly after. See Zizhi Tongjian, vol. 281.
Shi Jingtang took up residence at Yedu in 941, in response to the expected rebellion by the major general An Chongrong, so this would have been in 941 or shortly after. See Zizhi Tongjian, vol. 282.
