A mountain of flowers is rising around Aleksej Navalnyj's grave at the Borisovskoje cemetery in southeastern Moscow.
Hundreds of people have defied bitter cold and threatening warnings from Kremlin-friendly commentators that the authorities, who have branded the deceased opposition leader as "extremist", are keeping them under surveillance.
Navalnyj's widow Julia Navalnaja is calling for continued struggle for a free and peaceful Russia from her exile in Germany.
We know why we fight: For a future Russia that is free, peaceful and beautiful. The Russia Aleksej dreamed of is possible, do your utmost to realize his dream, she says in a video published on Sunday.
The 48-year-old national economist has emerged as a leading figure among Russian opposition members after her husband's death. She has previously expressed a desire to run in a future presidential election.
Eighteen countries, including Sweden, have issued a joint statement on the anniversary. There, they express their condolences to Navalnyj's family and urge Russia to release Navalnyj's imprisoned lawyers and all other political prisoners.
