The origins of the older Bavarian duchy can be traced to the year 551/555.
Limbourg the town was not in this region, but a small part of its old Duchy was.
The area of the district is roughly identical with the old duchy's main territory, the Stargarder Land.
It was a maritime power with numerous seaports, including Salerno itself, and controlled mostly the western half of the old duchy.
The old Duchy of Saxon began to split up in the 15th Century, because law said that all sons should inherit.
These towns virtually formed the old duchy of Saxe-Gotha-Altenburg.
Other variants of pungent and soft "Limburger" cheeses are now made in many countries, using the name derived from the old Duchy.
La Petite-Raon was a village in the old Duchy of Lorraine.
Here is an old Six Duchies saying for you to ponder: "There is more than one fish in the sea".
The old duchy included an exclave around Ratzeburg, which is today situated in Schleswig-Holstein.