discover that his mother had killed herself in a refusal to surrender to the Manchus. After this, Koxinga developed increasingly powerful antagonism with the Manchus. She is said in one source to have killed herself by stabbing herself in the neck. Koxinga cried when he found out his mother died. The Japanese celebrate how Tagawa committed suicide while fighting and claim that the Manchus said "If the women of Japan are of such sort, what must the men be like?" and that the Manchus were afraid of Japanese because of her, and they would not want to fight Japanese men if Tagawa was what Japanese women were like. The Japanese play The Battles of Coxinga said "Even though she was a woman, she did not forget her old home, and paid reverence to the land that gave her birth. Until her last breath she thought of the honor of Japan." The Japanese claim she committed suicide while fighting and that she preferred "death" and had the "Yamato spirit" while what really occurred is unknown because of the many different versions offered from different sources. The Japanese Foreign Affairs association during World War II cited Tagawa as an example of a Japanese who had "the spirit of facing certain death in order to live up to a cherished cause". The Qing being responsible for killing Tagawa was something Zheng Zhilong had to live with since he did not know the Qing were going to kill her. The Qing did not trust him because they were the ones who got Tagawa killed so he might turn against the Qing if they let him go. His Japanese blood is believed to be the cause for his violent propensity according to a Spanish missionary. Dispute over background Tagawa's real first name is unknown and she is only known by her surname Tagawa in Japan and China. According to Japanese folklore in Hirado her name was Matsu. Half-Chinese theory In the Zheng family genealogy, Tagawa Matsu is recorded under the Sinicized name of Weng-shi. Some Chinese records indicated that this is because after she moved to Quanzhou, an old ironsmith neighbour, Weng Yihuang (翁翌皇), treated this foreigner newcomer like his own daughter. There are a small number of Chinese sources mistaking Tagawa Matsu as Weng Yihuang's blood daughter, with a Japanese mother surnamed Tagawa. Chinese on Taiwan who seek to downplay Tagawa Matsu's Japanese identity