 Archaeological finds show that, earlier, there had been a settlement of the Hallstatt culture on the site.In addition, a grave has been found that is associated with the Corded Ware culture.The castrum was probably used again by Germanicus in 15 AD, according to interpretations of what wrote Cornelius Tacitus
 
It has been written by academics that the Markbreit fortification was connected by Roman small ships to the Rhine river.