Background
He was born to a Polish Jewish family in Opoczono, as a son of Eliasz.
writer bookseller book publisher
He was born to a Polish Jewish family in Opoczono, as a son of Eliasz.
Young Jakób graduated from junior high school in Radom.
After returning to Poland, he was working for Hyppolite Wawelberg and joined the Polish Socialist Party. In 1903, when he returned to Warsaw, Mortkowicz and Teodor Toeplitz founded the Mortkowicz Towarzystwo Wydawnicze w Warszawie Sp. Akc., one of the most important book"s companies in prewar Poland.
In 1931 he committed suicide.
Jakób Mortkowicz was buried at the Jewish Cemetery in Warsaw.
Then, he was studying in Munich, Brussels and Antwerp, where he graduated from Trading Academy and was member of the Association of the Polish Students (Stowarzyszenie Polskich Studentów) and the Federation of the Socialist Youth (Związek Młodzieży Socjalistycznej). Foreign socialist activity, Jakób Mortkowicz was prisoned in the Warsaw Citadel and then he was punished by forced migration to Caucasus Mountains.