Complex sentence: Having been desecrated during the sixteenth century, the nave of the church and the tower were repaired for use by the congregation, this part being subject to various restorations in subsequent centuries, a comprehensive renovation of the whole church, was carried out in the 1970s.
Split into simpler sentences: Having been desecrated during the sixteenth century, the nave of the church and the tower were repaired for use by the congregation, this part being subject to various restorations in subsequent centuries. A comprehensive renovation of the whole church, was carried out in the 1970s.