His birth date is estimated based on his obituary in the Vatican Apostolic Library and his epitaph in San Lorenzo in Damaso, which give him an age at death of seventy years and two months.
Among those imprisoned with him were Marco Lucido Fazini, Demetrio Guazzelli, Agostino Maffei and Antonio Settimuleio Campano.
He is sometimes confused with Paolo Marsi da Pescina, who in fact included a poem Ad fratres Academicos Romae captivos ("to the captive Roman academics") in his Bembicae.
[2] Also in that year, he became the tutor to Cristoforo Piccolomini, nephew of Cardinal Iacopo Ammanati, on Pomponio Leto's recommendation.
[2][3] He also penned a commentary on the Punica of Silius Italicus (Venice, 1483), based on an edition published by Pomponio Leto in 1471.