So change southern iberia, create the fictional claimable kingdoms of Andalusia, or something like that, it's already stupid that you have to controll almost all southern iberia to recreate the kingdom of Castille.
In my opinion either all iberian kingdoms (maybe not Galicia and Mallorca though) should be reclaimable, or none should be (since we don't know what would have happened if they had fallen to the moslems).
In my opinion either all iberian kingdoms (maybe not Galicia and Mallorca though) should be reclaimable, or none should be (since we don't know what would have happened if they had fallen to the moslems).