Pu Songling
Another legend, which originated in the Northern Song dynasty (960–1127) and was popularised by the works of Luo Guanzhong, Pu Songling and others in later periods, says that Cao Cao had 72 tombs constructed to serve as decoys and protection against grave robbers. The Northern Dynasty Tombs in Ci County, Handan, Hebei were initially believed to be the 72 tombs, but archaeologists later confirmed that they belonged to the imperial families of the Eastern Wei and Northern Qi dynasties and have nothing to do with Cao Cao.