Belavenets was born in Smolensk to a noble family with a long history of serving in the Russian navy.
[1][2] He and Mikhail Yudovich, known as the Smolensk twins, had been close friends since meeting in a school match in 1925.
[5] While fighting in the Soviet Army during the Second World War, Belavenets was killed in an action at Staraya Russa in 1942.
His daughter Liudmila held the title of women's world correspondence chess champion from 1984 to 1992.
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