The location of the tombs was originally in the area known as the “Cemetery of the Bishops”, on the left side of the Presbytery of the Cathedral, where on the opposite side stood the “Cemetery of the Kings”. Its current location is the result of a number of transformations which begun in the last decades of the 18th century. They were designed by Ferdinando Fuga and then completed in a more incisive way by the architect Venanzio Marvuglia. Among the tombs of the bishops was also that of Gualtiero, which is now located in the crypt.
