2. Massacre of Burgundy
In 437 AD Romans hired Huns to teach Burgundians a lesson for their constant plundering of Rome. Attila accepted and rode to present-day France. Although Atilla and the Huns didn’t have anything personal against the kingdom of Burgundy, they saw no reason to hold back. Atilla’s punishment of Burgundians quickly escalated to the pure massacre. Roughly 20 thousand people were killed, along with Gundahar, king of Burgundy. As a result, the first kingdom of Burgundy collapsed and this event later became a thing of myth, being incorporated in gothic legend Nibelungenlied.