Ferdinand IV promised to cede one sixth of the conquered Granadan territory to the Aragonese crown and therefore chose the entirety of the Kingdom of Almeria as its limits fit the agreement with the exception of the towns of es:BedmarBedmar, Alcaudete, Quesada, Arenas, and Locubin which would stay with Castile, having all previously been part of the Kingdom of Castile and León prior to their Muslim takeovers.

Ferdinand IV further stipulated that if the lands taken from the Kingdom of Almeria did not amount to one sixth of Granadan territory, that the archbishop of Toledo would step in to resolve any differences related to the matter.

Many of the magnates under the Castilian banner were against the siege, this camp being led by John of Castile and Don Juan Manuel who both preferred a war of attrition and purely for profit in the area of Vega de Granada.

Don Juan Manuel was dissatisfied because he preferred to wage war against Granada from his home territories in Murcia and did not want to fight in the Algeciras area.

To add to these misgivings, it is important to note that Algeciras had been the principal Muslim stronghold on the Iberian Peninsula since the Moors first landed there and was extremely well fortified.

On 29 April 1309, Pope Clement V issued a papal bull Prioribus decanis which officially conceded to Ferdinand IV one 10th of all clergy taxes collected in his kingdoms for three years to aid in financing the siege From Toledo, Ferdinand IV and his army marched to Córdoba where the emissaries of the James II announced that the Aragonese king was prepared to launch the siege against the city of Almeria.

This betrayal provoked the indignation of courts all across Europe, being considered so incomprehensible that James II of Aragon himself rode after the traitors to unsuccessfully attempt to convince them to return to the siege.

[1] The squalor in the Christian camp by the River Andarax eventually reached such alarming proportions that Ferdinand IV was obliged to sell off the jewelry of his wife, Constance of Portugal to pay the soldiers and knights for their continued service.

An accord was reached stipulating that in return for lifting the siege, Ferdinand IV would receive the border towns of Quesada, Quadros, Belmar and a payment of 5,000 golden pistoles.