|This article is about the duchy in Far North. For the similarly sounding Redanian city, see Yspaden.|
- The mentions of the duchy in Wiedźmin: Gra Wyobraźni and The Price of Neutrality module are mistakes based on a fan-made map from Andrzej Sapkowski Zone. The map includes the duchy based on a (misspelled) reference to Yspaden in "The Lesser Evil". According to Andrzej Sapkowski's own notes, which were released after the map was created, Yspaden is a city in northern Redania.
- Though authors of 2nd Edition of Wiedźmin: Gra Wyobraźni had originally wanted to change the duchy's name to Barsa, in the final materials published it is called "Vespaden".
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