The Załuski Library established in Warsaw in 1747 by Józef Andrzej Załuski and his brother, Andrzej Stanisław Załuski, both Roman Catholic bishops, was a public library nationalized and renamed upon its founders' death into the Załuski Library of the Republic which existed until the final demise of Polish-Lithuanian Commonwealth in the Third Partition of Poland in 1795.
Załuski Library's original seat: now "House Under the Kings" (Dom Pod Królami), Warsaw