After Luther dramatically burned the Papal Bull of Excommunication, Rome turned all its guns on him. Leo X enlisted the help of the young emperor Charles V, who, needing a strong political ally, was happy to assist the Pope in any way he needed.The only problem was that Charles was not empowered to act unilaterally. The constitution of the Empire required that the Emperor could not proceed until he had given the Princes of the Empire an opportunity to put forward a more viable solution to whatever matter the Crown was deliberating. At this time the Diet of the Empire was in session at Worms and Charles planned to broach the subject of Luther there. Most of the Princes cared little for Martin Luther and the movement he had spawned but they did care about the infringement upon their rights by the Papacy and to agree to crush out Luther would be to submit themselves further to the authority of Rome, which they were not prepared to accommodate.
Charles enlisted the help of Aleander, the papal Legate delegated to handle the heresy of Wittenberg, to convince the Princes that Luther should be martyred without a hearing. In a long-winded discourse lasting three hours, Aleander argued his case before the assembled Diet at Worms, who then took three days to deliberate the matter.