It’s good to hear that Copernicus’ grave has been located in the cathedral in Frombork (Poland). The Polish side of my family is from his birthplace ToruĊ, where he is the local hero, giving his name to a university and some other cultural institutions.
Professor Ed Peters mentions a detail I hadn’t known before: not only was the astronomer a deacon, he was a canon lawyer with a JCD from the University of Ferrara.