sources are not known. Some of the interpolations are used to weave a legend of a Trojan origin for the Franks through the chronicle. Book I The initial 24 chapters of the first book are based on the anonymous Liber generationis which in turn is derived from the work of Hippolytus. The remainder of the book contains a compendium of various chronological tables including a list of the Roman Emperors, a list of Judaic kings, a list of popes up to the accession of Theodore I in 642 and Chapter 3 of the chronicle of Isidore of Seville. On the reverse of the folio containing the papal list is an ink drawing showing two people which according to Monod probably represent Eusebius and Jerome. Book II The first 49 chapters of the second book contain extracts from Jerome's Latin translation of the Chronicle of Eusebius. The text includes some interpolations. The remaining chapters contains extracts from the Chronicle of Hydatius. Book III The third book contains excerpts from Books II–VI of the Decem Libri Historiarum by Gregory of Tours with several interpolations. Fredegar's source appears to have lacked the last four books of Gregory's text and his narrative ends in 584. Book IV The 90 chapters in the fourth book contain details of events concerning the Burgundian court. Fredegar does not reveal his sources but the earlier chapters are presumably based on local annals. Chapters 24–39 contain an accounts from witnesses of events between 603 and 613. Chapter 36 is an interpolation on the life of Saint Columbanus that is copied, almost without change, from the Vita Columbani by Jonas of Bobbio. The book ends abruptly with the Battle of Autun in 642. Book IV has been the most studied by historians as it contains information that is not present in other medieval sources. Continuations One group of manuscripts (Krusch's Class 4) contain a reworking of the Chronicle of Fredegar followed by additional sections that describe events in Francia up to 768. These additional sections are referred to as the Continuations. Krusch in his critical edition, appends these extra chapters to the text of the Codex Claromontanus creating the false impression that the two parts originate from the same manuscript. Class 4 manuscripts are divided into three books. The first begins with a section based on the treatise De cursu temporum by the obscure fourth century Latin writer Quintus Julius