  From 1281, the year of the publication of the papal bull Ad fructus uberes issued by Pope Martin IV, Henry represented the main theological reference point for the faction of prelates (secular clergy) in the clash with the regulars of the Mendicant Orders over the question of the reiteration of confession; in other words, in the prelates’ interpretation, over the obligation for all believers to confess to their parish priest, at least once a year, sins already confessed to a friar. Henry would be engaged in this violent controversy for the rest of his life and it seems that he was even temporarily suspended from teaching for not having heeded the papal legates’ warning not to hold disputes on the interpretation of privileges granted by the pope.