In the presented paper, the authors examine the assumption that Martianus was not only a mediator of "septem artes liberales" to the Middle Ages in his great encyclopedy De nuptiis Philologiae et Mercurii, but perhaps also a mediator between the Roman and Vandal worlds, that De nuptiis was written later than it is traditionally acknowledged: in Vandals' Carthago. To be able to prove this assumption, we reexamine several sources of dating the work and consider whether the shift in dating can give us the reason to believe that Martianus wrote his work intentionally for Vandals, and thus to explain some exceptional features of the plot.