I believe that if there is a good Catholic claimant (or, if he sits the throne currently) then he will get the lands. This is probably the case, since West Francia probably has four dozen Karlings and others that are Catholic with claims. If it's not, well... Otherwise, it goes not to who has the highest "war score" but who made the largest "contribution" -- this is shown if you hover over the Crusade flag on the left, under your character's portrait. Sometimes the largest "contribution" is the guy who sent 3000 troops to their doom at the start of the war.
Indeed, there are a lot of catholic claimants. I tried another reload and read carefully when I hovered over the flag, it was written the land would be given to the duke of Nantes. So, now, I know I'll don't put a lot of forces into one crusade like that if I m not the "real" winner.
Stolen Rutters said:The top contributor to a Crusade ONLY gets the lands if there is no existing Christian claimant. Typically, this means only lands like Jerusalem or Andalusia would end up yours as a top contributor. Very rarely does a realm like France or Italy have no proper claimants.
I didn't know that. Thanks to these informations, I ll spare my troops in this case...
Thank you very much for your answers.