Mercenaries' names

Hi again,
I have a problem with the names given by the game to the mercenary units. In the Reconquista mod the mercenaries are "foreign" units from Europe, Africa and Middle East. They are considered as two "ghost" factions (catholic and muslim), that do not appear in the campaign map (only in the first turn) but it is possible to select them for custom battles or MP.
The cuestion is that I have prepared a list of "foreign" names for the catholic mercenary faction, but those mercenaries have generals with Spanish (catholic) names.
Does anybody know how can I modify this?