《隋书·列传·卷八》
世充称帝后，杨庆降爵为郇国公，又改姓郭。
世充既僭伪号，降爵郇国公，庆复为郭氏。
After Shichong proclaimed himself emperor, Yang Qing was demoted to Duke of Xun and changed his surname back to Guo.
<s>[INST] 翻译: 世充既僭伪号，降爵郇国公，庆复为郭氏。 [/INST] After Shichong proclaimed himself emperor, Yang Qing was demoted to Duke of Xun and changed his surname back to Guo.</s>
翻译: 世充既僭伪号，降爵郇国公，庆复为郭氏。
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After Shichong proclaimed himself emperor, Yang Qing was demoted to Duke of Xun and changed his surname back to Guo.
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