King Yanping was Koxinga (Zheng Chenggong), who resisted against Qing dynasty and established Southern Ming dynasty. He was born on 14 July 1624 in Chirihama, Hizen, Hirado (present Minamimatsuura District of Nagasaki prefecture) of Japan. In 1661 CE, Koxinga successfully led his troops in driving out the Dutch and claimed Taiwan. He passed away, however, at an early age of 39 after 14 months of reign. Although his rule was brief, Koxinga made remarkable contributions in opening up Taiwan and was regarded as the hero of Taiwanese history. In commemoration of his achievements, the Taiwanese addressed him as ‘Sage King of Developing Taiwan’
In 1654, Emperor Yong Li bestowed Zheng Cheng-gong King of Yan Ping, but he modestly refused. In April 1955, Emperor Yong Li ordered again to bestowed Zheng as Lord of Yan Ping in Xiamen. Zheng then accepted and was bestowed. After Zheng successfully recovered Taiwan, in less than 14 months, Zheng passed away at the early age of 39. Although he only stayed in Taiwan for a short period of time, he had made a lot of achievements, including driving out the Dutch and exploring territories in Taiwan with a large number of Chinese people. To show their gratitude for the hero, Zheng Cheng-gong was honored as “Kai Tai Shen Wang” (Sacred King for the Exploration of Taiwan) and worshipped in a temple after he passed away.
The historical records of the three generals beside Lord of Yan Ping are different from those spreading in society. According to General History of Taiwan, the three generals were Liu Guo-xuan, He You-zhi, and Li San. However, according to Journal of Taipei Administration, the three generals were referred to as Liu Guo-xuan, He Bin, and General Shi. Only Liu Guo-xuan was the same as the one recorded in General History of Taiwan. Besides, according to people in Guandu, the three generals were different from those mentioned in the above two historical documents: the three generals were Prince Zheng, Gan Hui, and Wan Li.