The sail vault of the narthex is decorated with the figure of Christ in the iconographic type of Pantokrator, the Supreme Judge. The wall-painting was part of the narthex’s decorative composition with the concept of the Last Judgement spread across every wall, except the conch of the south wall. This imagery, along with the series of medallions and the apostles depicted in the pendentives, consists of an unusual alteration of the well-established representation of Heavenly Court, the central composition of the Last Judgement. However, the iconographic wall-painting ornamentation of the narthex, still evokes a typical dome composition.
These frescoes are dated to 1332 A.D. and their imagery corresponds to the scripture, homilies and poetic work of the Last Judgement.