 Complete the following phrase:  The current edifice is the result of several construction phases, destructions, and protection interventions. The remains of the oldest construction phase date to the 8th or 9th century, and can be found in the altar area. The church was subsequently remodeled in the 10th century, and further, in the 11th century as related in an inscription at the apse conch in the north porch. Its dome фтв and the northern aisle come from the latter reconstruction. The cathedral was almost completely destroyed in 