Sudergoa From Wikipedia the free encyclopedia Together with Westergoa and Eastergoa Sudergoa was one of the three goaën of the Dutch province of Friesland during the Middle Ages. From the 13th century on Sudergoa became a part of Westergoa. Stavoren has been the centre of Sudergoa. This Dutch-history-related article is a stub. You can help Wikipedia by expanding it.vte This Friesland location article is a stub. You can help Wikipedia by expanding it.vte