(Photo by Ethan Miller/Getty Images for Keep Memory Alive)BERLIN – Siegfried Fischbacher, namesake partner in the iconic entertainment duo Siegfried & Roy, has died in Las Vegas at age 81. Fischbacher’s long-time partner on and off the Las Vegas Strip, Roy Horn, died last year at a Las Vegas hospital of complications from COVID-19. For years, Siegfried & Roy was an institution in Las Vegas, where Fischbacher and Horn's magic and artistry consistently attracted sellout crowds. “They put Las Vegas on the map not only as spectacular illusionists but also as breeders, trainers and caretakers” of their performance animals. Their break came in a Monte Carlo casino when an agent in the audience invited them to Las Vegas.