I know both Da Vinci and Raphael died shortly after Luther posted his 95 Theses (Da Vinci on 1519, Raphael on 1520) on 1517. But Michelangelo lived till 1564, and worked on many art pieces during the Protestant and Catholic-Counter Reformation; did he ever reveal his true opinion on the Catholic Church?
Further question. What do you mean by 'blindly support'?