Complex sentence: It was built in 1526, over a Tlahuica/Aztec tribute collection center, which was destroyed by the Spanish during the Conquest and replaced by a personal residence of Cortés in order to assert authority over the newly conquered peoples.
Split into simpler sentences: It was built in 1526, over a Tlahuica/Aztec tribute collection center, which was destroyed by the Spanish during the Conquest. Cortés replaced it with a personal residence to assert authority over the newly conquered peoples.