史思明
In 761, Shi Siming was assassinated and succeeded by his son Shi Chaoyi, and it was said that other Yan generals, who were originally Shi Siming's equals, began to disobey Shi Chaoyi's orders. Tang forces thus were able to beat back the Yan forces but were not able to dislodge Shi Huaiyi from Luoyang, and final victory over Yan would not come in Emperor Suzong's lifetime.