The duo started performing together in 1967 after meeting while working together on a cruise ship. With its ornate costumes, choreography, lighting, and music, it became one of the shows most identified with Las Vegas in the 1990s, and brought the duo global fame.
Siegfried Fischbacher, right, and Roy Horn, pose with their white tigers Neva and Vegas in NY in June 1987. The show opened in 1990 and remained one of the most popular and celebrated acts in Las Vegas for more than 10 years and almost 6,000 performances.
A Siegfried & Roy magic show was an opportunity for extravagance.
The duo stepped back onstage for one final performance on March 1, 2009, when they held a benefit show for the Cleveland Clinic's Lou Ruvo Center for Brain Health in Las Vegas. From the moment we met, I knew Roy and I, together, would change the world.
For years, Siegfried & Roy was an institution in Las Vegas, where Fischbacher and Horn's magic and artistry consistently attracted sellout crowds.
The white lions and white tigers were the result of a preservation program that began in the 1980s.
The entertainer was suffering from a malignant tumour that was initially removed during a 12-hour operation.
In 2003, Roy was attacked and seriously injured by one of his white tigers.
Multiple worldwide outlets including German news agency DPA reported Fischbacher's death.
In 2004, their act became the basis for the animated comedy Father of the Pride, about the mischievous adventures of a family of white lions who perform with Siegfried & Roy in Las Vegas. There could be no Siegfried without Roy, and no Roy without Siegfried.
The pair made their debut at the Tropicana hotel-casino in the late 1960s.
Following Roy's death past year, Siegfried said in a statement: "There could be no Siegfried without Roy, and no Roy without Siegfried".
They became headliners in "Beyond Belief" at the New Frontier in 1981. Trainers eventually got the tiger to release Horn, but not before the magician suffered major injuries that would inhibit his verbal and motor abilities for the rest of his life.
"Today, the world has lost one of the greats of magic, but I have lost my best friend", Siegfried said at the time.
According to legend, Roy had smuggled his pet cheetah on board, and asked the magician: "Siegfried, disappearing rabbits is ordinary, but can you make a cheetah disappear?"
"I give my heartfelt appreciation to the team of doctors, nurses and staff at Mountain View Hospital who worked heroically against this insidious virus that ultimately took Roy's life".
Funeral services will be private but a public memorial is planned, Kirvin said.