Since the second half of the 11th century, the kings of Aragón and the counts of Barcelona and of Urgel tried with obstinacy to conquer the Muslim held towns and frontier fortresses of the Marca Superior.

Specifically, they targeted the low lands around the Segre and Cinca Rivers all the way to the mouth of the Ebro, an active and prosperous region with direct access to the Mediterranean Sea.

The day of 17 July 1134 brought the arrival of an Almoravid relief force,[4] led by the governor of Lérida, Ibn ‘Iyad.

Seeing reinforcements, the besieged Fragans sallied out,[4] however Alfonso I, still confident in his numerical and tactical advantage, rallied his troops.

At this moment, the emir of Cordoba launched a final attack with his cavalry and broke the Christian troops once again.