Europe · The successor kingdoms
Breton kingdoms
drawn on the map AD 587–824
A short-lived Breton kingdom flourished under the Carolingians. Nominoë, appointed missus by Louis the Pious, revolted and defeated Charles the Bald at Ballon (845).
- Shown on the map
- AD 587–824
- Peak area
- 24k km²
- Region
- Europe
Overview
A short-lived Breton kingdom flourished under the Carolingians. Nominoë, appointed missus by Louis the Pious, revolted and defeated Charles the Bald at Ballon (845). His son Erispoë (851–857) was recognized as king after the Battle of Jengland (851). Salomon (857–874) extended Breton power to its greatest medieval extent before his assassination. The kingdom fragmented amid internal strife and, decisively, the Viking invasions, which devastated Brittany in the early 10th century and drove much of its aristocracy into exile before the duchy was reconstituted under Alan II c. 936–939.
Common questions
- What were the Breton kingdoms?
- A short-lived Breton kingdom flourished under the Carolingians. Nominoë, appointed missus by Louis the Pious, revolted and defeated Charles the Bald at Ballon (845).
- When are the Breton kingdoms shown on the map?
- The border data draws the Breton kingdoms AD 587–824. The source samples borders at fixed dates, so a span can begin late or run on past the end.
- How large were the Breton kingdoms?
- At their greatest extent drawn on this map, the Breton kingdoms covered about 24,000 km². That is the largest area the border data gives them across the years they are drawn, not necessarily their greatest extent in history.
Sources
This compendium cites its sources once for the whole document rather than per territory. Its bibliography names the English Wikipedia articles for each territory as the primary basis, cross-checked against Encyclopædia Britannica and specialist snippets, and flags entries built on unreliable foundations — the 911 treaty of Saint-Clair-sur-Epte known only from Dudo of Saint-Quentin, and Arnaud Amalric's alleged order at Béziers attested only decades after the fact. The article this entry is anchored on:
- Wikipedia — Brittany en.wikipedia.org/wiki/Brittany
This entry was last updated .
This entry was researched and drafted with AI from the sources above, and has not been reviewed by a historian. How entries are made
Text available under CC BY-SA 4.0: reuse it with a credit to The World Through Time and a link to this page. Passages drawing on the Wikipedia articles listed above are also licensed CC BY-SA 4.0 by their contributors.
Border geometry for the map itself comes from Cliopatria v0.12 (Seshat Global History Databank, CC-BY-4.0).
See the Breton kingdoms in their world
Open the atlas at AD 706 and every neighbour, rival and successor is on screen with it — then drag the slider and watch what happens next.
Open the map at AD 706 →