Victorius of Aquitaine

This dependency caused scholars to think that Prosper had been working on his own Easter Annals for quite some time.

In fact, Victorius published his work only two years after the final publication of Prosper's Chronicle.

This first version was later continued by other authors, who filled in the names of the consuls as the years passed.

Also, it was used for a letter to Charlemagne in 773, and probably, in its continued form, a source for both Bede (who found here that Aetius was consul for the third time in 446) and the Historia Brittonum.

Victorius also wrote a 98-column multiplication table which gave (in Roman numerals) the product of every number from 2 to 50 times and the rows were "a list of numbers starting with one thousand, descending by hundreds to one hundred, then descending by tens to ten, then by ones to one, and then the fractions down to 1/144".