Yangzhou (684) — the same event in Old Book of Tang, New Book of Tang and Zizhi Tongjian

Old Book of Tang: Xu Jingye falsely claimed to be Yangzhou Sima, killed Chen Jingzhi and rose in revolt in Yangzhou.; New Book of Tang: Li Jingye (Xu…

What each source says

Old Book of Tang (Jiu Tangshu), Annals · AD 684 · 揚州

Xu Jingye falsely claimed to be Yangzhou Sima, killed Chen Jingzhi and rose in revolt in Yangzhou.

故司空李勣孫柳州司馬徐敬業偽稱揚州司馬,殺長史陳敬之,據揚州起兵,自稱上將,以匡復為辭。
Location: 舊唐書 卷6 光宅1年 9月

New Book of Tang (Xin Tangshu), Annals · AD 684 · 揚州

Li Jingye (Xu Jingye), Sima of Liuzhou, rose in revolt at Yangzhou against Empress Wu.

柳州司馬李敬業舉兵于揚州以討亂
Location: 新唐書 卷004 則天·中宗 光宅1年9月

Zizhi Tongjian (Comprehensive Mirror) · AD 684 · 揚州

A few days later, Xu Jingye arrives by post carriage, passing himself off as the Sima of Yangzhou, and declares he has received a secret edict and raised troops to put down the rebellion of Feng Ziyou, chief of Gaozhou.

居數日,敬業乘傳而至,矯稱揚州司馬來之官,云「奉密旨,以高州酋長馮子猷謀反,發兵討之。
Location: 권203 684년 항

Where the sources differ

A and B are two of the sources listed above.

On what pointSource ASource BWhat differs (in Korean)
WhoNew Book of Tang (Xin Tangshu), AnnalsZizhi Tongjian (Comprehensive Mirror)a는 류주사마 이경업, b는 양주사마를 사칭

Place: 揚州

Show on the map — open Old Book of Tang (Jiu Tangshu), Annals