The Rosenberg Book, a unique source of the Bohemian land law written in the 14th century, lacked until now a full and comprehensive catalogue of all the extant manuscript copies. As the paper contains a physical and codicological description of 10 the known 40 manuscripts of the Rosenberg Book, it presents to the readers the first part of the catalogue. In the introduction to the paper the catalogue is supplemented with basic information about the existing records of the Rosenberg Book manuscripts, brief characteristics of its manuscript tradition, an the guidelines for the manuscript description itself.