Answer:
The painting shown here is known as the 'Virgin Mary with Emperor John II Komnenos and Empress Irene'. Most of the mosaics of the Byzantine Empire is present in Hagia Sophia.
This mosaic illustration shown shows the influence of Christianity within the empire where faith and administration were more connected in the Byzantine Empire than in the west. The Role of the Eastern Orthodox Church in the Empire is more prominent. The Byzantines saw their emperor not just as the head of the kingdom but as the living representative of God or holy figure.