Vladimir Putin's main opponent, Alexeï Navalny, died this Friday in a penitentiary center in the Russian Far North. He was serving a 19-year prison sentence for "extremism" Europe 1 takes stock of the first elements provided by the Russian prison services.

The man, aged 47, appeared to be in good health on Thursday, during his last public appearance during a hearing. This tall blond with piercing blue eyes appeared thin and aged in a video, but he remained smiling and cheerful.