In 280, when forces of the Jin dynasty invaded Wu, Yu Zhong joined the brothers Lu Yan and Lu Jing in defending Wu. They were all killed in battle, after which Wu was conquered by Jin.(晉征吳，忠與夷道監陸晏、晏弟中夏督景堅守不下，城潰被害。) Kuaiji Dianlu annotation in Sanguozhi vol. 57.
