[2] It has been attributed to Bishop Magneric of Trier, who was a counsellor of King Childebert II in the 580s.
Recently, however, it has been argued that the compilation was only brought together in the early 9th century at Lorsch.
[3] The letters give insight into the workings of Frankish diplomacy and life at the Austrasian court.
The letters give insights into the literacy of the kings' inner circle, along with snippets of information not supplied by other sources of the period.
The letters are particularly useful in illuminating the complex diplomatic relations between Austrasia and the Byzantine Empire.