Andrea Bregno was one of the most important Lombard sculptor of the 15th century. His grave is located inside the Church of Santa Maria sopra Minerva, close to the altar in the left nave. It is decorated with strange symbols such as a compass and a six-pointed star. The latter is a hexogram formed by two triangles entwined, symbolising the balance between the material and the spiritual worlds. The compass represents the spirit. Last, there is a group of three squares, symbol of the heaven on earth linked to the spiritual world represented by the compass. All these illustrations are emblems often used in Freemasonry.