Siegfried Fischbacher, the surviving member of German entertainment duo “Siegfried and Roy,” has died at the age of 81, his sister confirmed to dpa on Thursday. Fischbacher, originally from the city of Rosenheim in south-east Germany, became famous for his appearances with white tigers and lions alongside his partner Roy Horn. “He was at home in Las Vegas,” Fischbacher’s sister said, adding that she had called him on the phone. “I was able to pray with him and tell him that I would always be with him in my heart.” Fischbacher had suffered from cancer. His partner Horn died after falling ill wi…