Jagiellonian Library
Jagiellonian Library (, popular nickname "Jagiellonka") is the library of the Jagiellonian University in Kraków and with almost 6.7 million volumes, one of the biggest libraries in Poland, serving as a public library, university library and part of the Polish national library system. It has a large collection of medieval manuscripts, for example Copernicus' "De Revolutionibus" and Jan Długosz's "Banderia Prutenorum", and a large collection of underground literature (so-called "drugi obieg" or samizdat) from the period of communist rule in Poland (1945–1989). The Jagiellonian also houses the "Berlinka" art collection, whose legal status is in dispute with Germany.
Royal Library, Denmark
The Royal Library () in Copenhagen is the national library of Denmark and the university library of the University of Copenhagen. It is among the largest libraries in the world and the largest in the Nordic countries. In 2017 it merged with the State and University Library in Aarhus to form a combined national library. The combined library organisation (the separate library locations in Copenhagen and Aarhus are maintained) is known as the Royal Danish Library ().