The frescies in St Trinity’s chapel contain several figures from the Old Testament. On the right and the left (large) pictures Abraham recieves three travellers in the shape of angles and entertains them to a meal; two minor pictures above show St Elias in the desert, and the angel bringing him food. The ceiling-piece represents Jacob’s dream – a ladder with angels to Heaven. The frescoes at the entrance to the chapel show Aaron and King David (on the right), and in his altar-piece Langus portrayed Mary’s coronation. Both angels of this altar have been moved to the altar of Helpful Mary. In this chapel, the Cathedral’s benefactor, Baron Codelli, was buried.