# First Barons' War begins (1215)

URL: https://english-history.com/timeline/1215-first-barons-war-begins
Categories: battle

Rebel barons renounced allegiance to John after the failure of Magna Carta's settlement. Within the broader Medieval Kingdoms period, the English, Scottish and Welsh polities were reshaped by conquest, parliamentary development, dynastic conflict, plague and long wars with France. This event is placed at 1215 in the chronology so it can be read alongside the political, military, social and cultural changes around it. The civil war showed that the charter emerged from an armed constitutional crisis rather than peaceful reform.

## Why it matters
The civil war showed that the charter emerged from an armed constitutional crisis rather than peaceful reform.

Ruler at the time: [John](https://english-history.com/rulers/john)

## Sources
- [Wikipedia topic lookup — First Barons' War begins](https://en.wikipedia.org/wiki/Special:Search?search=First+Barons%27+War+begins&go=Go)
- [Encyclopaedia Britannica topic lookup — First Barons' War begins](https://www.britannica.com/search?query=First+Barons%27+War+begins)
- [Wikipedia — Timeline of British history](https://en.wikipedia.org/wiki/Timeline_of_British_history_%281000%E2%80%931499%29)
- [UK Parliament — Living Heritage](https://www.parliament.uk/about/living-heritage/)