 The library holds a number of old and important illuminated manuscripts.Apart the Iron Crown, the most famous attraction of the church is the Chapel of Theodelinda.It has 15th-century frescoes from the Zavattari workshop depicting the stories of the queen's life, such as the dove episode, her marriage proposal, her meeting with her first husband, Authari, the latter's death in battle, and her new marriage with Agilulf.