The siege of Lleida took place in 1123 in a Christian effort to recapture territories from Muslim control in the Iberian Peninsula.

For unknown reasons, Ramon Berenguer III, Count of Barcelona, established an alliance with the governor of Lleida, Abu Hilal.

[1] After securing western borders with the Leonese kingdom, the Aragonese king, Alfonso the Battler, made preparations against Lleida.

The Aragonese forces used the castle they built to blockade the city, cutting off the supplies that were delivered through the Segre River, and trap its inhabitants.

Relive forces led by Ramon Berenguer III, Count of Barcelona, and William IX, Duke of Aquitaine, arrvied.