Complex sentence: Santisima Trinidad was a location on the northeast coast of Taiwan at Keelung, where in 1626 the Spanish established a settlement and built Fort San Salvador, which they occupied until 1642 when they were driven out by the Dutch.
Split into simpler sentences: Santisima Trinidad was a location on the northeast coast of Taiwan at Keelung, where in 1626 the Spanish established a settlement and built Fort San Salvador. They occupied until 1642 when they were driven out by the Dutch.