The building was refurbished in the 16th and 17th centuries, creating a sober Renaissance facade for the ornate Baroque interiors, and ceilings, now present.
The Baroque wooden statues of Christ and the Madonna Addolorata, on the main altar were completed by Carlo Magistretti and Domenico Valli.
The stucco work on the triumphal arch and ceiling was completed in the 17th century.
However, the procession still includes white-gowned members anonymously parading under capirotes, carrying statues of the dead Christ and the Madonna Addolorata.
In a near hypnotic ceremonial spectacle that has persisted for centuries, as they wend through and around the town, they highlight the objects of the Passion, clatter with metal cow-bell-like instruments, light cauldrons of flames, and chant a Miserere.