挟天子以令诸侯 (挾天子以令諸侯) xié tiānzǐ yǐ lìng zhūhóu

xié tiānzǐ yǐ lìng zhūhóu set phrase hold the feudal overlord and you control his vassals
Domain: Idiom 成语
Notes: Originates in Cao Cao's control over the feudal lords in the late Han