Cathedral of Eufrasius, main apse, vault and triumphal arch

The mosaics in the triumphal arch over the apse represent Christ, holding an opened book with the text "Ego sum Lux vera" (I am the true light) with the Apostles, each with their attribute. The arch below contains mosaic medallions with the Lamb of God and portraits of twelve female martyrs. The vault over the apse is decorated with mosaics with Mary and Child, sitting on the Heavenly throne, under a wreath held by a hand - symbol of God the Father. She is flanked by angels and Bishop Euphrasius, holding the model of the church. Also local saints are depicted, including St. Maurus, the first bishop of Poreč and the Istrian diocese, and the archdeacon Claudius. The child between Euphrasius and Claudius is accompanied by the inscription "Euphrasius, son of the archdeacon". All figures stand on a meadow covered with flowers.