Lev Kamenev arrested in 1902, ending his formal education. From that point on, he worked as a professional revolutionary, and was active in the capital St. Petersburg, Moscow and Tiflis. He adopted the surname Kamenev during this period. In the early 1900s, he married Olga Bronstein, a fellow Marxist (and younger sister of Leon Trotsky, who had also adopted a different surname). The couple had two sons together. Kamenev joined the Communists in 1901. He took a brief trip abroad in 1902, meeting Russian social democratic leaders living in exile, including Vladimir Lenin, whose adherent and close associate he became. He also
Lev Nussberg Lev Nussberg Lev Valdemarovich Nussberg (; born 1937) (also known as "Nusberg") is a Russian painter, and founder of Russian kinetic art. Born in 1937 in Tashkent, Lev's father Waldemar reportedly was of German familial origin rumored of Nußberg gardeners, but the Von Nusbergs appear to at some point in history lost the aristocratic prefix "von". Waldemar, an architect, in 1938 was accused of "spying for a foreign power" and, following a quick Soviet era conviction, disappeared while incarcerated as a prisoner of a gulag in Urals. Lev's mother, born Raisa Bespalova, was a Russian singer. In the late 1940s,