Complex sentence: At the end of the nave is a marble altar with a marble paneling depicting the Sacred Heart, while the apse houses a marble sarcophagus with the relics of St. Anastasia with the inscription by Bishop Donat (9th century).
Split into simpler sentences: At the end of the nave is a marble altar with marble paneling character of the Sacred Heart. The apse houses a marble sarcophagus with the relics of St. Anastasia with the inscription by Bishop Donat (9th century).