 On the left side , the first chapel was dedicated to the Nativity of Mary . Since 1573 this chapel , the giuspatronato of the Milanese Carcano family , contained the stone reportedly used for Isaac 's sacrifice . A Ricci painting of the birth of Mary was on its altar ; on its vault were the Four Evangelists , and its walls were decorated with frescoes . The second chapel , dedicated to San Giacomo , had a statue ( later replaced by a painting ) of the saint above the altar and was the burial place for members of the Confraternity of the Blessed Sacrament . The third chapel , dedicated to the Crucifixion , contained a large sculpture of Christ on the cross . 
