The Haydn Mausoleum is located right under the north tower. It is the famous composer's dignified and evocative place of burial.
Thousands of music lovers from all corners of the globe visit the mausoleum every year.
Joseph Haydn (1732-1809) had been employed with the Esterházy family for more than 40 years. After his death he was first buried in Vienna. In 1820 his remains were transferred to Eisenstadt and put into their final resting place, the mausoleum, in 1954.
https://www.eisenstadt-leithaland.at/en/sightseeing/sightseeing/haydn-mausoleum