Outside Boccaccio, there was a Theodontius, who wrote on the wars of Troy, and is quoted by Servius on "Aeneid", I, 28; and the fourteenth century author Domenico Bandini, who made an index for the "Genealogiae", calls him "Teodontius Campanus diligens investigator poetici figmenti". Carlo Landi argued in his 1930 monograph "Demogorgone" that Boccaccio's Theodontius was a Campanian philosopher, from between the 9th and 11th centuries.