Kuzmin was born in Moscow, son of the architect Vladimir Legoshin and the literary critic Edwarda Kuzmina; among his grandparents were the critic Boris Kuzmin and the prominent literary translator Nora Gal.
Kuzmin was born in Moscow, son of architect Vladimir Legoshin and literary critic Edwarda Kuzmina; among his grandparents were critic Boris Kuzmin and prominent translator Nora Gal.