In the central part, in an almond, depicting the Madonna and Child and around the symbols of the four Evangelists.
On the sides of the Saints Ermacora, Fortunato, Euphemia, Mark, and Hilary and Tatian, smaller, Emperor Conrad II together with his family, the Duke of Carinthia and the Patriarch Poppo in the act of offering to the Virgin Mary the model of the church to him renewed. In the lower part are represented eight Saints; further down a long inscription commemorates the consecration of the Church on 13 July 1031.
Sculptural work of great elegance and refinement performed by Bernardino da Bissone.
And most likely an altar frontal Gothic style with Christ at the center and sides of the Saints Canzio, Canziano Canzianilla and Proto.
Marble bust of extraordinary expressive force carved by a soldier artist, Edmund Furlan, during the First World War.
2.15 m high and recently restored propitiatory was carried in processions to pray for rain or whatever.
Supported by four columns by Filippo de Sanctis. On the front a bas-relief depicting St. Ermacora with the four virgins Aquileia: Erasma, Euphemia, Tecla and Dorothy. On the back: Christ between two donors.
Sheet or barriers that enclose the chapel right now dedicated to S. Peter and originally bordered the presbytery erected by the patriarch Maxentius.
Once adorned the apse above the patriarchal chair with the function of the altarpiece. They are represented Saints Peter and Paul, Ermacora and Fortunato, Mark and Theodore, dominated from above by the figure of the Saviour.
It houses the sarcophagus of some patriarchs of the family of the Tower, it is dedicated to S: Ambrose.
Colored stone, is located within the niche of S. Jerome.
Istrian stone is painted in the late Romanesque style.
Reproduction of S. Sepulchre of Jerusalem as it was described by early medieval historians and travelers. It was used for the liturgy of Holy Week.
Located opposite the main entrance of the church has an octagonal and hexagonal tank interior (characteristic of Aquileia and areas affected by its evangelization).
The patriarch Maxentius had erected on the porch in front of his church to connect to the baptistery through a closed building with two floors, the so-called “Church of the Pagans.”