Good question... I can't honestly recall the exact name - it was something like 'Burgita', just to the north-west of Tolosa and south of the Loire. I'm not familiar with that end of the map yet

However, I don't think it was the location - there was another FM in the stack (ie the governor) and he came out and raised mercenaries and successfully broke the siege of Tolosa. And it probably wasn't the duplicated name either, as both of these two FMs had two namesakes each, according to the character list