You're reading: The Guardian: Sergei Kovalev obituary

Alone among Soviet dissidents of the Leonid Brezhnev years, Sergei Kovalev, who has died aged 91, went on to play a major role in the eras of Mikhail Gorbachev, Boris Yeltsin and Vladimir Putin, only to find that his outspoken support for human rights put him once again in opposition to the Russian government.

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