Introduction to the Royal Church: The Royal Church (Hofkirche) is the most influential imperial mausoleum in Europe. It is also a witness to the essence of palace art in the transitional period from the late Middle Ages to the Renaissance in Europe. On the left side of the altar is the largest and best-preserved of the five remaining Renaissance-style pipe organs in the world, which was made by Lewinsburg luthier Jorg Ebert.