Mirabell Palace is located in Mirabellplatz in Salzburg, Austria. The Palace is a cultural heritage monument located in the Salzburg UNESCO World Heritage Site. It was originally known as Altenau Castle and built around 1606 for Prince-Archbishop Wolf Dietrich Raitenau and his mistress Salome Alt. The palace was later rebuilt in a Baroque style between 1721 and 1727. The building received its current Neoclassical style 1818 after a fire badly damaged the palace. The palace and grounds were purchased by the city of Salzburg in 1866, and were eventually used as the mayor's office. On June 1, 1815 the palace became the birthplace of the future King Otto of Greece. It was also the home of Archbishop Maximilian Joseph von Tarnóczy, who lived here between 1851 and 1863, and Joachim Haspinger, leader of the Tyrolean Rebellion, who lived out his last year in an apartment in the palace. Most infamously the palace played host to the wedding of Gretl Braun, the sister of Eva Braun. Here at the palace, on June 3, 1944, she married SS-Gruppenführer Hermann Fegelein, who served as the liaison officer for Reichsführer-SS Heinrich Himmler. Himmler was in attendence that day, as was Adolph Hitler, Eva Braun and Martin Bormann. In later years the palace became famous again as a shooting location for The Sound of Music. The 1965 classic used the palace and gardens as a backdrop during the Do-Re-Mi number.