Lydia Dan

Lydia Osipovna Dan
Lydia Dan (centered), with Semyon Vainshtein (left) and Irakli Tsereteli (right)
Irkutsk (1914–1915).
Born
Lydia Osipovna Tsederbaum

(1878-05-21)May 21, 1878.
DiedMarch 28, 1963(1963-03-28) (aged 84)
New York City, New York, United States
OccupationMenshevik revolutionary
SpouseFyodor Dan

Lydia Osipovna Dan (Russian: Ли́дия О́сиповна Дан; née Tsederbaum; 21 May 1878 – 28 March 1963) was a Menshevik revolutionary leader and active participant in the revolutionary movement of Russia.

Her brother was the Menshevik leader Julius Martov, her husband was fellow Menshevik Fyodor Dan.