The church of San Sepolcro was founded in 1030 by Benedetto Ronzone, likely the Master of the Mint of Milan, who dedicated it to the Holy Trinity. In 1100, while a lot of Milanese led by Bishop Anselmo IV da Bovisio was taking part in the second Crusade, the church was consecrated with its current name. The first significant changes to the ancient building date back to 1578 when Carlo Borromeo entrusted it to the Oblati congregation.
Then in 1605 his cousin Federico had the inside completely modified. The outside appearance also went through significant changes, firstly in 1718 and in 1897 when Gaetano Moretti and Cesare Nava gave it the neo-Romanesque look with its exposed brickwork that still nowadays overlooks piazza San Sepolcro and renovated the two bell towers with the new mullioned window-loggias. The church’s interior dates back to the 14th century.
The atrium, delimited by two chapels and ascribed to Francesco Maria Richini, precedes the main nave with Corinthian columns, which is flanked by aisles overtopped by Matroneums. The most important part of the church of San Sepolcro is the crypt made up by five naves where it is housed a 14th century sarcophagus with the relics brought by the people of Milan that came back defeated from the second Crusade. The urn is said to contain a lock of Maddalena’s hair and a handful of dirt from the Holy Land. Unfortunately it is forbidden to visit the crypt, due to its terrible conditions.