However, the Crónica is the only source mentioning such an encounter and, as it was written three hundred years later, most leading scholars give no credence to this claim, which was probably intended to justify the prerogatives of Peter IV of the Crown of Aragon.

Then El Cid targeted the southeast of the Taifa of Tortosa, ravaging the territory around Morella, even re-fortifying the castle at Olocau.

Sancho, who had avoided confrontation during the raid on his own kingdom, joined with Mundhir al-Hayib, the ruler of the united realms of Denia, Lleida, and Tortosa, and camped by the Ebro.

El Cid reportedly replied to the king's demand that he retire with an uncompromising message, and when the two armies joined in battle the former scored "an overwhelming victory" in mid-August, probably 14 August.

Sixteen of whom were important enough for the anonymous author to name: El Cid also sacked Sancho's camp and carried an enormous booty back to Zaragoza.