Du Yu

Also known as Zi Yuankai · Armory Du · Du Yu of Zuo Zhuan

Du Yu, courtesy name Yuankai, from Duling in Jingzhao, born in 222, was an official, general and classical scholar of late Wei and early Western Jin, nicknamed the Arsenal. He married a sister of Sima Zhao and pressed for the campaign against Wu. After Yang Hu died in 278 he took command in Jingzhou; in 280 his forces took Jiangling, and Eastern Wu soon fell. While in Jingzhou he restored irrigation works for the farmland. He wrote the Collected Explanations of the Spring and Autumn Annals and the Zuo Commentary and said he was addicted to the Zuo Zhuan. He died at Deng in 285, aged sixty-three, and was named Marquis Cheng.