Bayreuth Festival the 1970s Winifred Wagner was repeatedly petitioned to install a memorial to the Jewish singers at the Bayreuth Festival who had been murdered in concentration camps. A plaque was finally installed honouring Ottilie Metzger-Lattermann and Henriette Gottlieb after Winifred's death. Two-thirds of the town of Bayreuth was destroyed by American bombing in the final days of World War II, taking with it the rotunda, living room and guest room of Wahnfried, though the theatre itself was undamaged. Following the war, Winifred Wagner was sentenced to probation by a war court for her support of the Nazi party. The court also
Bayreuth Festival banned her from administration of the Bayreuth Festival and its assets, which fell eventually to her two sons, Wolfgang and Wieland. During American occupation of the region after World War II, the theatre was used for army recreation and religious services for American soldiers. Only popular concerts and mixed entertainment were allowed: comedy, dancing, acrobatics, and then only "Die Fledermaus" was staged. When the Festival House was handed over to the city of Bayreuth in 1946, it was used for concerts of the Bayreuth Symphony Orchestra and the performances of such operas as "Fidelio", "Tiefland", "Madama Butterfly" and "La traviata".