Zheng Chenggong is known as a great national hero of China for his recovering Taiwan Island from Netherlands invaders in 17 century.
At that time, China was controlled by late Ming Dynasty which was replaced by Qing Dynasty before long. At the same time, Netherlands colonist occupied Taiwan with force, the territory of China.
21 years old Zheng Chenggong gathered Taiwan people to fight against Netherlands colonists hardly since 1661. Through his hard fighting, the colonists surrendered without any condition. Thus 38 years colonial control ended. Taiwan came back to motherland, and Zheng Chenggong's name and great contribution was recorded in Chinese history book and passed down generation by generation.