The central section of tripartite rear wall of the sanctuary (probably the oldest) features a deisis (Crucifixion with Virgin and the beloved disciple, St. John), figures of St. Andrew are to the right, St. Agatha (kneeling) and St Peter to the left.
The central part of the sanctuary's rear wall (likely the oldest) showcases a depiction of the crucifixion with the Virgin Mary and the disciple, St. John. Figures of St. Andrew are on the right side, while St. Agatha is kneeling, and St. Peter is to the left.