Julius Martov or L. Martov; real name Yuli Osipovich Zederbaum (November 24; 1873 - April 4; 1923) was born in Istanbul in 1873.

The son of Jewish middle class parents; he became the leader of the Mensheviks in early twentieth century Russia.

This image; taken by Nadezhda Konstantinovna Krupskaya (1869-1939) at St Petersburg in 1897; shows (left to right) standing: A.L. Malchenko; P. K. Zaporozhets; A. A. Vaneyev; and seated: V. V. Starkov; G. M. Krzhizhanovsky; V. I. Ulyanov (Lenin) and Julius Martov. Pictures From History Nadezhda Konstantinovna Krupskaya