We have updated our Community Code of Conduct. Please read through the new rules for the forum that are an integral part of Paradox Interactive’s User Agreement.
You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser.
Folkungarna as in the Bjälbo-dynasty, or Folkungarna as in the faction opposing the Bjälbo-nobles? I don't think the latter Folkungarna is considered a family.
These two are apparently the arms of Västanstång and Östanstång, these were later combined to the present Östergötlands coat of arms.
Both had the same color, yellow on red and the dragon was the emblem for the entire region.