(commentary on the Regula Bullata, The Latter Rule of St Francsis of Assisi) Loyalty As a believer in exile. The first chapter of the Regula bullata is the hardest for me to read. The Seraphic Father swears his loyalty, and all of his successors' loyalty to the Pope and his successors. As a catholic, this used to be an easy chapter, but after the election of the current Pope, I thought this chapter was impossible to follow.