The vault of the Chapel of San Castrense is divided into three equal parts with three lunettes featuring oval fresco decorations at the centre. The frescoes are characterised by the presence of framed emblems and inscriptions that make us think of the founder, Ludovico II de Torres. In the fresco near the entrance door, for example, Archbishop Torres’ coat of arms can be seen, together with the inscription TURRIS FORTISSIMA; the fresco next to Ludovico II de Torres’ funerary monument features the inscription: IN FIDE ET FORTITUDINE; the fresco facing the altar features the bishop’s emblems and the motto IN FIDE ET LENITATE.
