The challenge is to make Andorra have its own monarchy that lasts (any PoD after its foundation in 805); it basically ends up a lot like OTL Monaco, being a tiny little statelet with its own monarchy, bordering but seperate from large countries, and probably being a tax paradise. There are no co-princes. Any means to make this happen?
Perhaps the Counts of Urgell hold on to the country? Or maybe the Counts of Foix don't acquire the Navarrese throne? (Which probably leads to Navarre being gobbled up by Aragon, unless something else happens to prevent this) The problem with both is that both the Counts of Urgell and those of Foix hold land besides Andorra itself, and I'm looking for a strictly Andorran monarchy (just like how the Grimaldis obtained Monaco and nothing else, and to this day still only hold Monaco), so I'm not entirely sure here.
The monarchy must preferably be hereditary. Bonus points if it lasts until the present day.
Perhaps the Counts of Urgell hold on to the country? Or maybe the Counts of Foix don't acquire the Navarrese throne? (Which probably leads to Navarre being gobbled up by Aragon, unless something else happens to prevent this) The problem with both is that both the Counts of Urgell and those of Foix hold land besides Andorra itself, and I'm looking for a strictly Andorran monarchy (just like how the Grimaldis obtained Monaco and nothing else, and to this day still only hold Monaco), so I'm not entirely sure here.
The monarchy must preferably be hereditary. Bonus points if it lasts until the present day.