This article describes in a critical manner all the sources of the song Angiolin dal biondo crin, two of which were newly discovered by the author. Very important too is the description of the order of composition of the whole set of the sources. Liszt used to revise some of his compositions many times, and the different versions of the same piece reflect his attitude to composition. According to the results of this research, the data on this song in the principal Liszt catalogues should be modified.