Censor.NET reports citing TASS.
Oleg Popov died in Rostov where he was on tour, Director General of the Russian State Circus Company Dmitry Ivanov announced.
"He was feeling good, was having rest, watching TV, and suddenly it happened," Ivanov said.
"We'll talk to the family about the place for a farewell ceremony. Perhaps it will be Russia. We don't know yet what his last will was. He is likely to be buried in Germany," he added.