The pope follows Tu devonitis sinceritas with another bull, in January 1345, giving the projected Cerda-led conquest and conversion of the islands the character of a crusade, granting indulgences to its participants, and papal letters are dispatched to the Iberian monarchs urging them to provide material assistance to Cerda's expedition.

The Portuguese king Afonso IV immediately lodges a protest, claiming priority of discovery, but concedes to the authority of the pope.

Alfonso XI of Castile also protests, claiming that, by the ancient Visigothic dioceses and prior Reconquista treaties, the islands fall within the Castilian jurisdiction and 'sphere of conquest', but nonetheless recognizes Cerda's title.

Despite their formal concessions, preparations are stalled by the opposition of the Iberian monarchs, with the result that no expedition will be mounted before Cerda's death in 1348.