Koxinga operate in Taiwan, Limahong established his base in Lingayen, after being defeated by the Spaniards he retreated first to Vigan Ilocos Norte ( Marcos home province) then to Batanes.
I think you are the conflating the two, Koxinga fought the Dutch ( their former allies against the Qing) While the Spaniards do fear Limahong as he ransack Manila before being driven out by the combined Spanish and native troops. After that the Spanish establish a Chinese Ghetto, the first Chinatown in the world within a cannon shot from Fort Santiago as a precaution against future uprising and invasion.
I think you are right and I was confusing the 2. I stand corrected.





