Gives a detailed history of the restorations carried out on the inside of the church (altars, paintings, etc.) over 500 years. The close connection of political and ecclesiastic bodies when selecting methods and principles of alteration and restoration is discussed. Detailed documents and plans show the consequences for the periods of the Enlightenment (late 18th century), Historicism (second half of the 19th century), and after the second Vatican Council from 1962 until the last intervention in 1982-1983. -- AATA