If you go far back enough, past Maldred, Merovich, the Red Pox, etc. one can find a rather normal history to the creation of the duchy of Mousillon....
.....well, except that part when Landuin rides home after winning the battle with the greenskins only to find his duchy besieged by Undead...
Which leads to the question - what is the Original curse on Mousillon? Because Landuin didn't provoke it...
Is it something from the dim elder past when the Elves used to walk around the land? Curse of a Ruinous Power? An ancient necromancer?
Or is it just one of those unlucky places that just......I guess.. naturally raises the Undead for no apparent reason?
And on a Real World Side Note - does anyone know where they got the inspiration for Mousillon? It feels like Lovecraft's Dunwich or Innsmouth..... just with less cosmic horror and more undead.