The Heiligenkreuz monastery was founded in 1133 by Margrave St. Leopold III of Austria, at the request of his son Otto. The date of consecration was 11 September 1133. They called their abbey Heiligenkreuz (Holy Cross) as a sign of their devotion to redemption by the Cross. During the 15th and 16th centuries, the abbey was often endangered by epidemics, floods, and fires. It suffered severely during the Turkish wars of 1529 and 1683. In the latter, the Turkish hordes burnt down much of the abbey precinct, which was rebuilt on a larger scale in the Baroque style. Heiligenkreuz abbots were often noted for their piety and learning. .The abbey has been an important Austrian centre for music for more than 800 years. Many manuscripts have been found at this monastery and it is also popularly known for a 2008 recording of a Gregorian chant: “Chant: Music For Paradise.”