[FredZarguna]

Well, you can scratch the first name from your list, because Copernicus was NOT a priest. Don't know about the validity of the rest of the names.

http://www.philosophy-religion.org/handouts/pdfs/Copernicus-rev.pdf

[miss marmelstein]

Copernicus was never ordained a priest although he took minor orders and studied Canon law. All of his work was done through the Catholic Church.

The rest of my list were all priests. The list is quite long.