Key Facts
- Dates
- 1245 – 28 February 1246
- Attacker
- Crown of Castile and Order of Santiago
- Defender
- Taifa of Jaén and Emirate of Granada
- Concluded by
- Treaty of Jaén
- Result
- Castilian victory; city handed to Crown of Castile and León
Strategic Narrative Overview
Ferdinand III of Castile, supported by the Order of Santiago under Grand Master Pelayo Pérez Correa, initiated the siege in 1245. The Castilian forces encircled the city and maintained pressure through the winter. The defenders, comprising forces of the local Taifa of Jaén and the Emirate of Granada under Muhammad I, were unable to break the siege or receive sufficient relief, leading to negotiations as conditions inside the city deteriorated.
01 / The Origins
During the 13th century, the Crown of Castile pressed southward against Muslim-held Andalusia as part of the centuries-long Reconquista. Jaén was a strategically vital city on the road to Granada. Its Taifa had aligned with the Emirate of Granada under Muhammad I, making it a combined defensive force that Ferdinand III of Castile sought to neutralise to consolidate Christian control over the upper Guadalquivir valley.
03 / The Outcome
On 28 February 1246 the city capitulated and was formally handed over to the Crown of Castile and León following the signing of the Treaty of Jaén. The treaty also established Granada as a vassal state of Castile. This outcome removed Jaén as a Muslim stronghold and opened the path deeper into Andalusia, fundamentally altering the balance of power in southern Iberia.
Belligerents & Mobilization Analysis
Side A
2 belligerents
Ferdinand III of Castile, Pelayo Pérez Correa.
Side B
2 belligerents
Muhammad I of Granada.
Kinetic Engagement Axis
Scroll horizontally to view full axis. Events plotted relatively.