In the making of the library catalogue, one of the main principles is convenience for the user – the name by which the author is best known and under which he wrote most often is chosen for the authorized access point. Additional access points are used to refer from one variant of name to another. What happens with authorized and additional access points if the author wrote under several very similar or even different names? The Croatian Latinists did just that. This paper is based on the VIAF database – the Virtual International Authority File, which offers insights into the similarities and differences of the authorized and variant forms of names in catalogues of various libraries. The names of sixteen Croatian Latinists catalogued by the National and University Library in Zagreb, the Vatican Library and the Library of Congress in the USA will be looked into. The concepts of universal bibliographic control and authority control will be theoretically explained. The onomastic theory of the name and the problem of author names in library and information science will be clarified. These three libraries and biographies of sixteen Croatian Latinists will be introduced. In conclusion, the similarities and differences of authorized and additional access points chosen by the three libraries will be interpreted.