ENThe term Radiviliana reflects the Latin form of the last name of the Radvilas (Radivili) and denotes everything related to the Radvila family. This presentation is based on the materials from the holdings of the Wrobleski Library of the Lithuanian Academy of Sciences and follows diverse activities in the life of a representative of this magnate family: the famous GDL statesman, Prince Mikalous Radvila the Black, whose 500th birthday anniversary is celebrated in 2015. These materials have been typologically classified into three main groups - manuscript documents, old print books and graphics items. The presentation gives a brief overview of this unique and extremely valuable documentary heritage.