Of roman construction, partly changed by modern interventions, this church has kept part of the old walls of the Basilica Virginum of the early christian era in the 4th century. Begun by Bishop Ambrogio and finished by his successor Simplciano as a place to keep the relics of the saints, Martirio, Sisino and Alessandro and Simpliciano himself, it is built in a latin cross design. The current building has three naves of equal height and finished in a semicircular apse with frescoes of the Coronation of Mary by Bergognone.
Milan