Józef Andrzej Załuski

A member of the Polish nobility (szlachta), bearing the hereditary Junosza coat-of-arms, he is most famous as co-founder of the Załuski Library, one of the largest 18th-century book collections in the world.

Together with his brother Andrzej Stanisław Załuski (1695–1758, bishop of Kraków and crown chancellor) he obtained the collections of such previous Polish bibliophiles as Jakub Zadzik, Krzysztof Opaliński, Tomasz Ujejski, Janusz Wiśniowiecki, Jerzy Mniszech and Jan III Sobieski.

[1] Located in Daniłowiczowski Palace in Warsaw, it was one of the world's finest libraries, with a collection of about 400,000 printed items and manuscripts.

[1] Załuski was an important member of the Enlightenment in Poland, one of the founders of the Polish Literary Society (Towarzystwo Literatów) in 1765.

He supported the writer Benedykt Chmielowski,[6] historian Gottfried Lengnich, and sponsored the publication of many foreign books and magazines.