The Esterházy Palace, as a former royal residence, is a landmark of the Burgenland capital Eisenstadt. It is owned by the Esterházy Private Foundation.
The historic ballroom of the palace is known as the Haydn Hall and is often used as a concert hall. Joseph Haydn was in the service of the royal court as Kapellmeister for thirty years in the 18th century and in this function had to compose hundreds of pieces of music for immediate performance at the prince’s ceremonial occasions. In 2009, two exhibitions were dedicated to Haydn in the palace.
The flower and kitchen gardens to the east and north of the castle were redesigned in Baroque style in the 18th century and, after Moreau bought additional properties at the beginning of the 19th century, as part of the castle renovation, it was transformed into an extensive English landscape park. The park is one of the most important garden architectural monuments in Austria and is a listed building