Every year on October 1st, a memorial service is held to commemorate those who perished at Hartheim Castle.
After the address of welcome by the chairman of the Hartheim Castle Society (currently Chairwoman Dr. Brigitte Kepplinger) and the Governor of Upper Austria (Dr. Josef Pühringer), the main speaker will hold the memorial speech. This year, this will be actress Maria Hofstädter.
After that, all present walk to the cemetery, were an ecumenical prayer is said. Then follows the placing of the wreaths.