 Archduke Karl II of Inner Austria had 20,000 Protestant books burned in the square of what is now a mental hospital, and succeeded in returning Styria to the authority of the Holy See.Archduke Franz Ferdinand was born in Graz in what is now the Stadtmuseum (city museum).The more recent population figures do not give the whole picture as only people with principal-residence status are counted and people with secondary residence status are not.