I am very confused with this duchy of Baden. I found that in 1066 it was a margraviate, which means a "border state" at this time. Does it deserves a "duchy" status??
if the situation is kept like it is, maybe a creation of "Duchy of Alsace" would be a good point.
it would solve the Sundgau problem : Louis de Scarpone, count of Montbéliard (in-game : Besançon) and Sundgau would try to fight with the dukes of Upper Lorraine for Nordgau to create this duchy, and it is not completely ahistorical since he claimed the duchy of upper lorraine for Sophie , countess of Bar (Upper Lorraine vassal) who is from a side branch of a former ruling dynasty in Upper Lorraine
and, dukes of Swabia nore margraviate of Baden never claimed to rule Alsace at this time, I think. So, it is my final consideration for that area :
- creating a tag for Duchy of Alsace including Sundgau(owned by count of "Besançon") and Nordgau (directely ruled by duke of Upper Lorraine)
or
- switching Sundgau to Lesser Burgundy or Baden, Nordgau to Baden or kept to Upper Lorraine
it would be nice if anyone knowing very well the history of this area (SW of Germany) would give his opinion about it

o