King Arthur, according to its literature, was a British leader. However, its influence in Brittany is huge. The Brocéliande, the mythical forest where Merlin was buried, is there, lots of family names in Brittany are originally from King's Arthur stories and etc. Why is that?

  • 6
    Did the character of Arthur have an influence on Brittany or did Brittany have an influence on the folk tale? Cause and effect aren't necessarily clear...
    – Steve Bird
    Commented Oct 22, 2018 at 18:23
  • 2
    You may want to read up about Brittany, find out why it's called that and why they speak Breton etc.
    – user31561
    Commented Oct 22, 2018 at 18:30
  • There's a good video on the early medieval origins of Brittany here (youtube.com/watch?v=DcAsjVIN528) Commented Oct 22, 2018 at 20:00
  • He was supposedly the king of Logre, which included part of France + part of the british islands so...
    – LamaDelRay
    Commented Jan 24, 2020 at 9:01

2 Answers 2


This question should probably be in the Myth & Folklore SE but let's answer it anyway.

King Arthur is such a major figure in Brittany because Brittany was largely settled by Britons towards the end of the 4th Century and into the 6th Century.

The reasons for this vary by time period, in the earlier wave sources state that Britons were sent to the Amorican peninsula by the Roman usurper Magnus Maximus to enforce his claim in Gaul under Conan Meriadoc (this of course is presented in later documents and should be taken with a grain of salt), later migration is largely considered to be due to the Anglo & Saxon spread westwards (1).

These migrants took their culture with them, hence the similar place names (compare Kernow/Cornwall to Gernow/Cornouaille in the map below) and the Breton language which is in the Brythonic language family with Welsh and Cornish. The later waves migrated at a time when a famous (mythical) warrior named Arthur was popular in Western Britain and of course, took his stories with them. (2)

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(1) Léon Fleuriot, Les origines de la Bretagne: l’émigration, Paris, Payot, 1980.

(2) Concepts of Arthur, Chapter 2.


This depends on when you think King Arthur existed. The Bretons moved to France at some time between the fifth and tenth centuries from southern Britain. This is why Britain and Brittany are similar words (identical in French, distinguished only by calling Britain "Great Britain"). They took their language, social structure, folklore, placenames (e.g. there is a Cornwall in Brittany) etc. etc. with them and King Arthur would be part of that, the stories being told in a language that was the same both sides of the Channel, only slowly diverging over time.

They would have identified places with the stories. Depending on dates it is also possible that King Arthur did cross the Channel and that events really did take place in France (as it is now called) but in the same culture and language.

  • 5
    Sources would improve this answer.
    – MCW
    Commented Oct 22, 2018 at 18:34

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