《北齐书·本纪·卷六》
孝昭帝穿着军服和平原王段韶、平秦王高归彦、领军刘洪徽从云龙门进入宫中，在中书省前遇到散骑常侍郑子默，又抓了起来，在御府内一起杀了。
帝戎服与平原王段韶、平秦王高归彦、领军刘洪徽入自云龙门，于中书省前遇散骑常侍郑子默，又执之，同斩于御府之内。
Emperor Xiaozhao, wearing military uniform, entered the palace with Duan Shao, King of Pingyuan, Gao Guiyan, King of Pingqin, and Liu Hongwei, who led the army from the Yunlong Gate, and met Zheng Zimeng, a scattered riding waiter in front of the Shu Province. He was arrested and killed in the imperial palace.