In the Main Archive of Historical Documents in Warsaw there can be found the so far
unanalyzed register of Janusz Radziwill’s travel library. At the age of sixteen, the magnate used to
take with him to his studies abroad the collection of 31 volumes, though as it is indicated in the
correspondence of the guardians of the young prince he also carried with him unmentioned in
the inventory (among others the works of Tacit).
The books present in the register have been presented in the paper. These were, first of all,
confessional documents, richly bound works, frequently noted in the Catholic indexes of forbidden
books. Janusz also took to his studies historical works the ones on ancient history as well as
those concerned with contemporary history. In the inventory the emblematic prints have been
indicated, handbooks for learning foreign languages and tourist guides. What should be
distinguished are the collections of poetry in his library: the collection Jan Kochanowski and the
lyrical poetry of Maciej Kazimierz Sarbiewski
