In Unam Sanctam (November 18, 1302), he decreed that " it is necessary to salvation that every human creature be subject to the Roman pontiff. " He was preparing a bull that would excommunicate the King of France and put the interdict over France, and to depose the entire clergy of France, when in September of 1303, William Nogaret, the strongest critic of the Papacy in the French inner circle, led a delegation to Rome, with intentionally loose orders by the king to bring the pope, if necessary by force, before a council to rule on the charges brought against him.