Answer
Nicolaus Copernicus was buried in Archcathedral Basilica Of The Assumption Of The Blessed Virgin Mary And Saint Andrew In Frombork , FromborkPoland. Frombork Cathedral or the Archcathedral Basilica of the Assumption of the Blessed Virgin Mary and Saint Andrew in Frombork, Poland, is a Roman Catholic church located in the small town of Frombork in northern Poland.