Zhenzhou (821) — the same event in New Book of Tang and Zizhi Tongjian
New Book of Tang: Wang Tingcou killed military governor Tian Hongzheng and rebelled.; Zizhi Tongjian: Wang Tingzhu gathers his private troops and…
What each source says
Wang Tingcou killed military governor Tian Hongzheng and rebelled.
成德軍大將王廷湊殺其節度使田弘正以反
Location: 新唐書 卷008 穆宗~宣宗 長慶1年7月
Wang Tingzhu gathers his private troops and kills Tian Hongzheng together with over 300 of his staff and household.
及魏兵去，壬戌夜，庭湊結牙兵噪於府署，殺弘正及僚佐、元從將吏並家屬三百餘人。
Location: 資治通鑑 卷242
Place: 鎮州(恆州·鎮陽) · 鎮州
Show on the map — open New Book of Tang (Xin Tangshu), Annals