His cult was ancient and was diffused during the eleventh to fourteenth centuries.
 Prosper was venerated in Parma, Bologna, Lucca, and other cities beyond Reggio.
 Some thirty-one churches and chapels were dedicated to him in the Middle Ages.
 However, after the Council of Trent, his cult once again was confined only to Reggio.
 The Reggio diocese celebrates his cult locally on November 24, but June 25 is his feast day on general calendars.

The painting by Giovanni Soncini of Saints Bernard and Prosper is the only known painting by this artist.
His cult was ancient and was diffused during the eleventh to fourteenth centuries.  Prosper was venerated in Parma, Bologna, Lucca, and other cities beyond Reggio.  Some thirty-one churches and chapels were dedicated to him in the Middle Ages.  However, after the Council of Trent, his cult once again was confined only to Reggio.  The Reggio diocese celebrates his cult locally on November 24, but June 25 is his feast day on general calendars.
The painting by Giovanni Soncini of Saints Bernard and Prosper is the only known painting by this artist.
Prosper of Reggio