Answer
At Xiapi, Lü Bu met his demise in a cataclysmic showdown that marked the end of his tumultuous reign. This pivotal battle took place in 199 AD when the forces of Cao Cao, a formidable warlord, converged upon Xiapi, the stronghold of Lü Bu. Despite Lü Bu's valiant efforts and unmatched martial prowess, he could not withstand the overwhelming might of Cao Cao's army.