By Staff Reporter, Catholic Herald - He is the second 'dubia' cardinal to die in the space of two months.. Cardinal Carlo Caffarra, one of the four cardinals who submitted the ‘dubia’ to Pope Francis, has died… Cardinal Caffarra was one of four – along with Cardinals Joachim Meisner, Walter Brandmüller and Raymond Leo Burke – who presented the ‘dubia’ to Pope Francis asking him to clear up controversies surrounding Amoris Laetitia.