He was brought to Rome where he became a papal Chaplain and, under Pope Nicholas III, served in the papal Chancery as Auditor sacri palatii (later termed Auditor of the Rota) [REF].
He was one of the officials, along with Pietro Peregrosso, who were charged by Nicholas III in 1279 with producing the finished version of Exiit qui seminat, the papal Bull which granted a favorable constitution to the Franciscan Order [REF].