Hans Küng Fr. Hans Küng was a Swiss citizen and professor emeritus of ecumenical theology at Tübingen University in Germany. He died April 6, 2021. By this Author Mar 01, 2017 500 years after the Reformation: End the schism! Apr 26, 2016 Fr. Hans Küng says Francis responded to request for free discussion on infallibility dogma Mar 09, 2016 Infallibility — Hans Küng appeals to Pope Francis Dec 02, 2013 Church reform at all levels Sep 23, 2013 The real test of Francis' reform: touching the spiritually poor May 21, 2013 The paradox of Pope Francis Mar 18, 2010 Ratzinger's Responsibility Mar 12, 2010 Sex abuse requires rethinking of mandatory celibacy Nov 06, 2009 The Vatican angles in rightist waters