List of state leaders in 840s BC
Vassal states
Columns: State | Type | Name | Title | Royal house
Cai | Sovereign | Wu | Marquis | Ji | Cao | Sovereign | Yi | Count | — | Chen | Sovereign | You | Duke | — | Chu | Sovereign | Xiong Yan the elder | Viscount | Mi | Chu | Sovereign | Xiong Yong | Viscount | Mi | Jin | Sovereign | Jing | Marquis | Ji | Jin | Sovereign | Xi | Marquis | Ji | Lu | Sovereign | Shen | Duke | Ji | Qi | Sovereign | Wu | Duke | Jiang | Qin | Sovereign | Marquis | Marquis | Ying | Qin | Sovereign | Gongbo | Ruler | Ying | Qin | Sovereign | Qin Zhong | Ruler | Ying | Song | Sovereign | Li | Duke | — | Wey | Sovereign | Li | Marquis | — | Yan | Sovereign | Hui | Marquis | —