祖大壽
In 1626 Nurhaci received news of the Ming retreat and decided to advance towards Ningyuan on the advice of a Chinese defector, Li Yongfang. He personally led a force of 100,000-130,000 (at least 60,000) to take Ningyuan. Initially Nurhaci attempted to convince Ningyuan's defenders to simply surrender, and sent a letter boasting that he had an army of 200,000, but Yuan did not believe him, and retorted that he had perhaps 130,000. In addition Yuan declared that he and his commanders Man Gui, Zu Dashou, and He Kegang were ready to fight to death. He was said to have quoted an ancient maxim at that point, saying, "Those who seek life will die, but those who welcome death will live."