Leon Feiner

Leon Feiner (nom-de-guerre "Mikołaj" (Michael), "Berezowski"; 1885 – February 22, 1945) was a Polish lawyer and activist.

He was an activist of the General Jewish Labour Bund in Poland and between November 1944 and January 1945 the director (prezes) and vice-chairman of the Council to Aid Jews "Żegota".

During the Nazi occupation of Poland Feiner, even though he lived in the "Aryan" side of Warsaw under the assumed name "Berezowski", was one of the central personalities of the Jewish underground in the city.

[5] Feiner's instructions to Zygielbojm were to cease mere protests and organize retaliatory bombing, leafleting and execution of Germans captured by the Allies, in response to the Nazi Holocaust.

Even while in the hospital he maintained relationships with his friends and fellow political activists and participated in discussions of the future of the Bund in Poland.