In April 1510, many Bolognese notables were shocked to learn the pope returned the legation of
Bologna to Cardinal Alidosi. They suspected him of dealing with the French during the fight against Venice. On 7 October 1510, while at the papal field near
Modena,
Francesco Maria I della Rovere,
Duke of Urbino, had the cardinal captured, handcuffed and led back to Bologna escorted by 150 horsemen. Outside the San Felice gate, twelve balestrieri removed the handcuffs and led him to a public square. Here he was accused of high treason. The Duke of
Urbino and citizens of Bologna were hoping he would be punished. Instead, the pope allowed him to defend himself, and, finding the accusations unjustified, ruled in his favour. Cardinal Alidosi was named apostolic administrator of the see of Bologna on 18 October 1510, a post which he occupied until his death. On 28 October 1510, Cardinal Alidosi was again taken prisoner by the Duke of Urbino for treason. The pope soon had him freed again and reinstated his honours. On 14 May 1511, the pope moved his residence from Bologna to
Ravenna for security reasons, lodging in the Benedictine monastery of San Vitale. The supporters of the
Bentivoglio and those who opposed the power of the church revolted immediately. At about 10 p.m. on 20 May, a disguised Cardinal Alidosi escaped to
Castel del Rio, taking all of value that he could carry. This action prompted Francesco Maria della Rovere, at the gates of the city, to abandon the field, along with all the artillery, nearly all the provisions, and numerous flags. On 23 May
Gian Giacomo Trivulzio, head of the French army, entered
Bologna with the
Bentivoglio. The pope notified the cardinals of the loss of the city, and charged the duke of Urbino and the citizens with treason. He asked the duke to be executed, but Francesco Maria responded by charging Alidosi with treason. From
Castel del Rio, the cardinal went to Ravenna to give his version. He was accompanied by his brother-in-law,
Guido Vaini, and a legatine guard of 100 horsemen. Pope
Julius II determined that the traitor had been the duke of Urbino. ==Death==