I know the vague outlines of the story about the Germanic Allemani influx into Switzerland during the time of Julius Caesar, when the displaced Celtic-speaking Helvetii tried to flee to southeastern France but were pushed back into Switzerland by the Romans. However, were there other mass migrations of peoples into Switzerland from the north 800 years later (Middle Ages?) that are chronicled in Swiss history books? I ask because I and a fellow from the area where England and Scotland come together have been genetically calculated to have shared a common patrilineal ancestor with 95% probability around 1200 years ago, and my ancestors come from western Bern Canton. My guess is that that common ancestor could have an Angle, Saxon, or Jute from somewhere in the coastal areas stretching from todays Netherlands to Denmark. These tribes are well-known to have flooded into Britain after the Romans left, but is it known whether some of them instead migrated south in the direction of Switzerland about 800 AD ? Thanks for any feedback. Dale Bricker