胡衍 / Hu Yan (Qi Minister)
胡衍 / Hu Yan enters the wiki through 《资治通鉴·周纪》69丨必看！古代帝王奇葩死法大盘点 as a Qi remonstrant who challenges 齐湣王 after Qi’s conquest of 宋国. The source says Qi Min Wang is preparing to attack 楚国, pressure the Three Jin, absorb the East and West Zhou polities, and make himself Son of Heaven; Hu Yan calls the plan absurd and is executed in the marketplace.
His role is source-scoped but important. Hu Yan marks the point where Qi’s external overreach and internal advice failure become the same problem: a ruler who needs correction most has made truthful speech lethal.