At the beginning of the nineteenth century Carl F. Weber attributed a Vita Lucanito Vacca, commentator of Lucan [see the relevant entry]; this Vita Lucani is transmitted in some manuscripts that preserve the scholia to Lucan and is published by Endt at the beginning of the edition of his Adnotationes (1909). The attribution to Vacca has been, however, seriously questioned by more recent studies (see already Ussani 1903 and, later, Marti 1950 and Martina 1984). The pieces of information present in the Vita differ from those present in the life of Lucan by Suetonius (transmitted to us, with lacunae, in some of the oldest manuscripts of Lucan’s Pharsalia). They provide a positive image of Lucan and his work in opposition to the mostly negative image given by Suetonius. Scholars have offered a critical discussion of these differences: some scholars interpret the pieces of information given by Vacca as original, dating back to a historical moment very close to the life of Lucan (Rostagni); others locate them in a later period, but judge them in any case as belonging to tradition entirely independent from Suetonius (Martina); others still believe that Vacca heavily manipulated the biographical tradition on Lucan, mixing information taken from Statius, Suetonius, and Tacitus, achieving arbitrary and historically inconsistent results (Brugnoli). [R. Tabacco; tr. L. Battezzato]