Yeah I remember the wealth tax but Dukes eventually avoided this through personal guilds they used as separate banks. I say Dukes as the main reason wealth tax was used in those days was to counter a hoarding semi inactive Duke whom you couldn't get rid off as half of the time these 'bastards' were royals as well. I remember complicated plots with infils (which often failed). So I'm not sure how much effect the wealth tax would have. Those with much to lose can safely circumvent it still atm.
On the other proposal. This one I love, not just like, but love. I think it would add much more incentive for war and makes realm more realistic as there are too many !@#$ty regions in the game. Ketchum is right about Nivemus. Being lord of just about anything around Oroya and Parm is more a punishmebt than a reward.
Of all the ideas you put forth, this remains my favorite by far.
