Original:  In the West , it was known as the Kingdom of Taiwan, and the period of rule is sometimes referred to as the Koxinga dynasty.
Revised:  In the West , it was known as Tywan (Taiwan), named after the King's residence at the city of "Tywan" in present-day Tainan. The period of rule is sometimes referred to as the Koxinga dynasty.
Edit intent: meaning-changed