After this Viking raid, Zutphen’s governor Count Everhard van Hamaland, carried out a successful counter attack. The Vikings were driven out. A strong defensive wall with a deep canal was quickly built around the destroyed settlement. This circular Walburg became a blueprint for the Middle Ages and the current formation of Zutphen, with a central square, and a lot of the streets built then, still exist today. So the Viking attack laid the foundations for the present form of Zutphen. Look at the impression of Zutphen’s circular Walburg. You see the Walburg strategically placed on the top of the peninsula, where the rivers Berkel and IJssel join. So you can see the enemy coming from all sides. In the background you can see smoke clouds from charcoal production. In the centre, in the square, is a church built of tuff stone, together with a Count's wooden chamber. Where the church stood, the St. Walburgis church was built. This is the large church opposite the museum.