Lydgate accepts Chaucer's view without question. He says—'And of this syege wrote eke Lollius'; Siege of Troye, ed. 1555, fol. B 2, back.
Usually called Guido de Colonna, probably because he was supposed to belong to a famous family named Colonna; but his name seems to have been taken from the name of a place (see note 1 on p. lvi). My quotations from Guido are from MS. Mm. 5. 14, in the Cambridge University Library.
He refers to the story of Troy as existing 'in the Latyn and the Frenshe'; Siege of Troye, fol. B 1, back; and explains 'the Latyn' as 'Guido.'
In an Italian work entitled 'Testi Inediti di Storia Trojana,' by E. Gorra, Turin, 1887, a passage is quoted at p. 137, from Book XIII of Guido, which says that Terranova, on the S. coast of Sicily, was also called 'columpne Herculis,' and Gorra suggests that this was the place whence Guido derived his name 'delle Colonne.' At any rate, Guido was much interested in these 'columns'; see Lydgate, Siege of Troye, fol. M 4. I think Tropæus, from Gk. τροπαῖα, may refer to these columnæ; or Guido may have been connected with Tropea, on the W. coast of Calabria, less than fifty miles from Messina, where he was a judge.
'Homerus ... fingens multa que non fuerunt, et que fuerunt aliter transformando'; Prologus. See the E. translation in the Gest Hystoriale, or alliterative Troy-book, ll. 38-47; Lydgate, Siege of Troye, fol. B 2.