Nanyang, Henan
In winter 618, the Tang generals Ma Yuangui and Lü Zizang () again defeated Zhu, but when Lü suggested making one final assault against Zhu, Ma disagreed, and Zhu was able to regroup. He declared himself the Emperor of Chu, and put Ma and Lü under siege at Nanyang (南陽, in modern Nanyang, Henan), capturing the city and killing Ma. Lü died in the siege.