Title: Ducal prestige penalties and bonuses
Summary: When a lord switches duchies this causes a loss of prestige for the duke he is abandoning and a prestige bonus to the duke he is joining.
Details: Already stepping down from a lordship costs a point of prestige. Why shouldn't losing a region be equally if not more costly? After all these kind of land disputes could lead to wars. Prestige loss/gain should vary based on the value of the region, a mountain or badlands region could be worth as little as a single point, a city or townsland could be worth several. Regions will always carry equal bonuses and penalties for a change of allegiance. If a duke can convince a lord to return he can earn his prestige back.
Benefits: Creates greater potential for conflict and the forming of factions within realms. Encourages the players of Dukes to adhere more to medieval values.
Possible Exploits: Since the most likely reason for changing duchies is avoiding high ducal taxes this might result in dukes keeping their taxes equal to discourage lords from changing regions. Dukes will probably keep cities for themselves to prevent the risk of them changing duchies.
