荆国 / Jing Kingdom (early Han)
荆国 / Jing Kingdom enters the wiki through Hanji 174 as one half of 韩信’s former Chu kingdom after 刘邦 removes Han Xin’s royal title. The source says Liu Bang assigns the Huai River southeast counties to 刘贾 as king of Jing.
The kingdom is a founding-control instrument. It converts territory once attached to a high-merit different-surname king into a same-surname royal jurisdiction, paired with 楚国 under 刘交.