# Battles of Jena and Auerstedt (1806)

URL: https://germany-history.com/timeline/1806-battles-of-jena-and-auerstedt
Location: Jena, Thuringia
Categories: battle

On 14 October 1806 Napoleon destroyed the Prussian army at Jena and Auerstedt. French troops entered Berlin. The Peace of Tilsit in 1807 cost Prussia half its territory.

## Why it matters
The shock of defeat launched the Prussian reforms.

Ruler at the time: [Frederick William III](https://germany-history.com/rulers/frederick-william-iii)

## Sources
- [Wikipedia – Battle of Jena–Auerstedt](https://en.wikipedia.org/wiki/Battle_of_Jena%E2%80%93Auerstedt)
- [Encyclopaedia Britannica – Battle of Jena–Auerstedt](https://www.britannica.com/event/Battle-of-Jena)