This church was founded in 1064 near the River Po, which at that time flowed right in front of the square where it stands, St. Peter's square. The church was later renewed. The interior is designed as a Latin cross with three naves. Decorated in the late sixteenth and early seventeenth century, the artwork it contains showcases the late Mannerism period in Cremona. The sacristy was entirely frescoed by Campi, and in the refectory (to the left of the church) there is a magnificent fresco by Bernardino Gatti entitled "The multiplication of the loaves" (dated 1552).