The mosaic panel depicting Roger being crowned by Christ was presumably located in the narthex, which was demolished at the end of the 16th century due to structural changes to the church layout. It can now be seen in the entrance hall, on the right, symmetrically to the one depicting Admiral George...

The mosaic panel with the dedication of the founder, George of Antioch, was certainly in the narthex that, at the end of the 16th century, due to some structural changes to the plan of the church was demolished. It is now visible in the entrance, on the left, symmetrically to the one depicting King ...

The opus tessellatum is one of the oldest procedures, also used in the Middle Ages. It is expressed through marble coverings of different colours and divided into different shapes, usually geometric, such as square, rectangle, triangle, sphere, pentagon, hexagon, octagon and also floral or figured m...

The cosmatesque style takes its name from Cosma, son of Jacopo di Lorenzo and one of the members of the Cosmati family. The Cosmati were a family of Roman marble workers who, from the 12th to the 13th century, with their workshops, had numerous commissions for architectural and decorative work in ec...

The term comes from Roman coinage and the way they represented the fraction of 5/12. A quincunx is an arrangement of five units, usually depicted with a central sphere and a further four spheres at the vertices. In the iconography of Santa Maria dell'Ammiraglio, as well as in many contemporary churc...

The term comes from Roman coinage and the way they represented the fraction of 5/12. A quincunx is an arrangement of five units, usually depicted with a central sphere and a further four spheres at the vertices. In the iconography of Santa Maria dell'Ammiraglio, as well as in many contemporary churc...

The iconostasis, which is mainly found in Eastern churches, is an architectural structure that divides the area of the presbytery from that of the nave. The iconostasis could also display icons, sacred images that had a symbolic role of prominence and connection between God and the faithful. The ico...

In the Greek cross layout, the 'arms' are of equal size, whereas in the Latin cross layout, the nave and transept are of different lengths. The transept, in fact, intersecting the longitudinal nave at right angles, gives the church its classic layout. The point of intersection, called the cross, is...

The pointed arch, or ogival arch, consists of two circular arches intersecting at the apex. It was used in Islamic and Byzantine architecture and was revived in Sicily during the Norman-Swabian period. It also appeared in Cluny in 1088, with the construction of the third abbey. Thanks to the use of ...

The barrel vault, a construction element characteristic of Roman architecture, is one of the simplest, used since ancient times to even cover large spaces. Its shape is derived from the arch and the curvature, which can be rounded, lowered or raised. The longitudinal intersection of two barrel vault...