Anonymi Barensis Chronicon is a medieval Italian annalistic chronicle.
Therefore, all three are assumed to be based on some older chronicle that no longer survives.
The survival of the chronicle is due to the 17th-century Italian historian Camillo Pellegrino(it) who transcribed the text from a manuscript in Salerno and published it in Naples in 1643.
In 1724, it was reprinted in volume 5 of Rerum Italicarum scriptores(it), influential corpus of historical sources first compiled by the Italian historian Ludovico Antonio Muratori.
In 1753, Francesco Maria Pratilli published a number of fake chronicles, including a forgery based on the Chronicon.