# Death of Louis the Pious (840)

URL: https://history-france.com/timeline/840-death-of-louis-the-pious
Location: Carolingian Empire
Categories: ruler-change

His death triggered open civil war among his sons. Within the broader Frankish Kingdoms period, Merovingian and Carolingian rulers built large Frankish realms over former Roman Gaul. Conversion, aristocratic power, church institutions and imperial expansion laid foundations for medieval France. At this point in the timeline, the relevant governing authority is Carolingian civil war (Competing Carolingian rulers). Death of Louis the Pious mattered because succession and legitimacy shaped alliances, institutions and the direction of state policy. The event is positioned here so visitors can read it alongside changes in government, warfare, society, religion, culture and France’s wider international setting.

## Why it matters
Death of Louis the Pious mattered because succession and legitimacy shaped alliances, institutions and the direction of state policy.

Ruler at the time: [Carolingian civil war](https://history-france.com/rulers/carolingian-civil-war)

## Sources
- [Wikipedia topic lookup — Death of Louis the Pious](https://en.wikipedia.org/wiki/Special:Search?search=Death+of+Louis+the+Pious&go=Go)
- [Encyclopaedia Britannica topic lookup — Death of Louis the Pious](https://www.britannica.com/search?query=Death+of+Louis+the+Pious)
- [Wikipedia — Timeline of French history](https://en.wikipedia.org/wiki/Timeline_of_French_history)