[1] The new building was subjected to the bombing of World War II and the 1980 Irpinia earthquake, both of which made necessary further significant stabilisation and reinforcement of the structure.
The Baroque access stairway and the arrangement of the piazza in front of the cathedral are the work of Bishop Martinez at the end of the 17th century.
To the north are firstly two chapels, of which one is dedicated to the Our Lady of the Seven Sorrows, while the other, containing an ancient canvas depicting the Annunciation, has served for a long time as a baptistry.
To the sides in four medallions are depicted elements recalling the Marian Litany of Loreto: a house, a star, a tower and a rose.
In the ten small cupolas which give light to the side aisles are painted gospel episodes from the life of the Virgin, works by Achille Iovine but repainted, because of the effects of damp, by Ovidio De Martino.
In the strip of wall that runs along the cornice has been inserted a long passage in Latin from the address of Pope Paul VI given at the closing of the third session of Vatican II.
On the walls, below the cornice, are two paintings by Achille Iovine showing the Holy Family, to the left, and Saint Lawrence the Martyr to the right; there are in addition four niches containing gesso statues of the Four Evangelists.
In the upper part of the apse are nine medallions containing representations of the first nine bishops of Avellino (mostly legendary); paintings of the Beatitudes and the figure of Christ; and in the ceiling vault three frescoes by Achille Iovine of episodes in the life of Saint Modestinus.