 In the following years, Chen continued to make minor gains against Northern Qi, but was not making major attacks.In winter 576, Emperor Wu of Northern Zhou launched a major attack on Northern Qi, quickly capturing, in succession, Northern Qi's secondary capital Jinyang (晉陽, in modern Taiyuan, Shanxi) and capital Yecheng.Soon, he captured the Northern Qi emperor Gao Wei and annexed most of Northern Qi's territory by spring 577.