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The place of writing is also unknown: Coumert believes the author worked in the Abbey of Montecassino, while Walter Pohl hypothesised that it took place in Milan and Luigi Berto agrees that it is probably a north Italian work.
While Melus fled to Guaimar III of Salerno, Dattus looked to the protection of the Abbey of Montecassino, where he was aided by the Latin monks, and to Pope Benedict VIII, who loaned him papal troops to garrison a tower on the Garigliano, in the territory of the Duchy of Gaeta, then ruled by the anti-Byzantine Emilia.