The Ecclesiastical Hierarchy with the political authority by which it is supported. The Religious Orders and the Afflicted appear in the foreground and according to an allegory the black and white dog at the feet of the Pope is meant to represent the Dominicans protecting the lambs from heresy in the form of a wolf. After fragment of 14th century fresco The Church Militant and the Church Triumphant painted by Simone Memmi in Sienna Cathedral. From Science and Literature in The Middle Ages by Pau