Years after the invasion by the Norsemen, the municipality fell into the hands of the Lords of Heusden.
Until the end of the Ancien Régime Heusden stayed property of the viscounts of Ghent.
Because Heusden was a part of the belt of defence around Ghent, it was looted many times during the Middle Ages.
[3] Over the centuries, the name Kusidiniom would have been corrupted and reduced, until it finally became Heusden, as we know it today.
The oldest mention of the village is when, in the 11th century, the Abbot Othejbold noted in a document that the place belonged to the Saint Bavo's Abbey before the Norman invasion.
Until the end of the Ancien Régime, Heusden remained under the viscounts of Ghent.