The Duomo Vecchio or Old Cathedral (also called "La Rotonda" because of its round layout) is a Roman Catholic church in Brescia, Italy; the rustic circular Romanesque co-cathedral stands next to the Duomo Nuovo (New Cathedral) of Brescia.[1] It is officially known as the Winter Co-Cathedral of Santa Maria Assunta, while the adjacent main cathedral is known as the Summer Cathedral.
While some claims for an earlier construction exist, the earliest documents state that construction of the cathedral started about 1100 on the site of a prior church with a basilica layout. It has a circular shape that became rare after the Council of Trent, and is one of the most prominent round churches of the period still remaining. There are 13th century frescoes on the interior walls, and a large canvas by Francesco Maffei showing the church with a bell tower, which has since collapsed.[1]
In the 19th century, many additions to the original medieval building were removed. The entrance portal is one later addition remaining. It contains the medieval Crypt of San Filastrio, in honor of the beatified Brescian bishop.[3]