Józef Andrzej Załuski and his brother Andrzej Stanisław Załuski acquired the collections of earlier Polish bibliophiles such as Jakub Zadzik, Krzysztof Opaliński, Tomasz Ujejski, Janusz Wiśniowiecki, Jerzy Mniszech and Jan III Sobieski (the latter, from his granddaughter, Maria Karolina Sobieska).
Library of Congress | American Library Association | New York Public Library | British Library | Bodleian Library | National Library of Australia | library | Library | State Library of New South Wales | Huntington Library | Library Journal | Carnegie library | State Library of Victoria | National Library of Ireland | Boston Public Library | Newberry Library | John Rylands Library | State Library of Queensland | National Library of Wales | Modern Library | Library of Virginia | Library of America | Black Library | Widener Library | Chicago Public Library | Cambridge University Library | Royal Library | Ronald Reagan Presidential Library | Mitchell Library | San Francisco Public Library |