San Maurizio al Monastero Maggiore is a church in Milan, northern Italy. It was originally attached to the most important female convent of the Benedictines in the city, Monastero Maggiore, which is now in use as the Civic Archaeological Museum. The 16th-century church of San Maurizio al Monastero Maggiore, the “Sistine Chapel” of Milan, considered one of the finest yet almost unknown artistic jewels of the city. Here disciples of Leonardo decorated the walls, the side chapels and the ceiling with colorful frescos of incomparable beauty.