He assisted at the opening of the Fifth Council of the Lateran; the council later charged him with reforming the church.[1] He participated in the papal conclave of 1513 that elected Pope Leo X.[1] At his request, the new pope removed the censures against Alfonso I d'Este, Duke of Ferrara on April 10, 1513.[1] From September 1, 1513 to March 3, 1518, he served as legate a latere to the March of Ancona and vicar general with special powers.[1] Returning to Rome, he lived in the Piazza Scossacavalli, and accompanied the pope hunting in Magliana, and, in 1516, on a trip to North Italy.[1]