Lord Mengchang

Lord Mengchang was appointed chancellor of Qi under King Min. He implemented policies that strengthened Qi's position, including alliances with Wei and Han, and led a campaign that captured the Qin city of Yique.

After a coup in Qi that removed King Min, Lord Mengchang fled to Wei. He later served as chancellor of Wei and plotted against Qi, leading to a coalition invasion that sacked the Qi capital of Linzi in 284 BC.

Lord Mengchang, a noble of Qi, maintained a household of 3,000 retainers from various social backgrounds. He treated them generously, and they provided him with advice, espionage, and military support, making him one of the most influential figures of the Warring States.

As chancellor of Wei, Lord Mengchang helped organize a coalition of Yan, Zhao, Han, and Wei that invaded Qi. The coalition captured the Qi capital Linzi, and Qi was nearly destroyed, though Lord Mengchang's role in the attack was seen as a betrayal of his home state.