Santa Pudenziana
In 1278 Jerome was made cardinal priest by Pope Nicholas III, and at some point after 16 May 1279 was assigned the titular church of Santa Pudenziana. Even after his appointment as a cardinal, he was allowed to remain as minister general of the Franciscans until the next general chapter. In the event, however, he was unable to attend the chapter for reasons of ill health, as a letter of apology of Pope Nicholas III, written in May 1279, indicates. On 12 April 1281 he was promoted to cardinal bishop of Palestrina by Pope Martin IV.