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Radboud Castle

Radboud Castle stands on the eastern side of Medemblik, close to the harbour, town and IJsselmeer. The castle was built around 1288 on the orders of Count Floris V of Holland, as a stone anchor of power in recently subdued West Friesland. Of the coercive castles Floris V had built in this region, only the castle of Medemblik survived. The present building shows not only medieval power, but also later alterations, restoration and romantic ideas of what a medieval castle should look like.

See something ancientPower & ruinsCoercive strongholdHeritage site
Radboud Castle in Medemblik seen from the castle moat.
Radboud Castle near Medemblik, seen from the moat. The castle preserves medieval remains, but also clear traces of later restoration.Photo: IJsbrand Heins. Source: Rijksdienst voor het Cultureel Erfgoed, via Wikimedia Commons, CC BY-SA 4.0Changes: No changes.

Why go here?

Walk around the castle moat and see how the castle stands exactly on the edge of town, harbour and water. The brick towers and walls make the power politics of Floris V visible, but the restoration layer tells just as much. Radboud Castle shows how a medieval stronghold of control was later reshaped into a recognisable castle image.

What do you see?

You see a compact brick castle with towers, walls, interior spaces, moat and clear traces of restoration. Around the building, remains and outlines of the former castle grounds can still be recognised. Its position near the harbour and the IJsselmeer shows why Medemblik mattered for controlling West Friesland, water connections and access to the town.

Why it matters

Radboud Castle is a rare survival of Floris V’s policy of coercive castles in West Friesland. The castle connects medieval power formation, West Frisian resistance, waterways, urban development and later heritage care. Because of its extensive 19th-century restoration, the building is not an untouched medieval time capsule, but a place where genuine late medieval remains and later ideas about the Middle Ages are visibly intertwined.

The deeper story

Radboud Castle stands on the eastern side of Medemblik, close to the harbour and the waters of the present-day IJsselmeer. The compact brick building appears medieval, but its history is far more layered than the first impression suggests. The castle originated at the end of the thirteenth century as an instrument of power for the counts of Holland. What is visible today consists of medieval remains, later alterations and a major nineteenth-century restoration.

Its construction is associated with Count Floris V of Holland. During the second half of the thirteenth century, he tried to bring West Friesland permanently under comital rule. The region had a strong identity of its own and resisted Holland’s domination for a long time. To Floris V, castles were therefore more than defensive structures. They had to secure conquered territory while demonstrating that comital authority intended to remain.

Around 1288, a coercive stronghold was built near Medemblik, originally known as the House at Medemblik. The later name Radboud refers to traditions surrounding the Frisian king Radboud, but the present castle was not built by him. It formed part of a series of fortifications with which Floris V sought to establish his position in West Friesland. Of those strongholds, the one at Medemblik is the only example that still survives in a clearly recognisable form.

The location was chosen carefully. Medemblik was an old settlement on important waterways. From the castle, the harbour, coast and land routes could be watched. Waterways were essential for trade, transport, military movement and communication. The castle therefore stood at a place where control over town, land and water came together.

A coercive stronghold also had a psychological purpose. Its stone walls housed troops, supplies and administration, but above all they served as a permanent warning. In a region where comital authority was contested, such a building made clear that the conqueror intended to establish a lasting presence. The castle therefore speaks not only of Holland’s power, but also of the West Frisian resistance that made such a display of force necessary.

The present castle no longer shows the complete thirteenth-century layout. Parts disappeared, were altered or were reshaped by later building phases. Elements of the medieval stronghold nevertheless remain. Other sections reveal reuse, decline and changing functions. Radboud Castle is therefore not an untouched time capsule, but a composite building in which several centuries remain visible beside and on top of one another.

The restoration carried out between 1890 and 1897 strongly shaped its present appearance. During that work, the castle was partly influenced by nineteenth-century ideas about how a medieval stronghold ought to look. The round corner tower, heavy brick mass and familiar silhouette therefore do not refer solely to 1288. They also show how later generations sought to reconstruct and present the Middle Ages.

That restoration layer is precisely what makes the castle so interesting. What stands here is neither a purely medieval structure nor a modern replica. Old masonry, restored sections and later additions together form the building as it exists today. Different phases of use can also be seen inside, in fireplaces, portals, ceilings and furnishings. Time is not frozen here, but accumulated within the building.

The name Radboud adds a layer of regional memory. Its connection with the Frisian king rests on later tradition rather than the castle’s actual construction history. Yet that tradition also belongs to the place. It shows how historical buildings can acquire new names, stories and meanings that eventually become almost as familiar as their true origins.

Radboud Castle therefore stands at the centre of the wider history of West Friesland. It recalls conquest, resistance and administrative incorporation. Its brick walls show how comital authority was literally anchored in the landscape. At the same time, the building reveals how later generations preserved, altered and reshaped that past.

Its present use as a museum adds another layer. The castle is not a silent ruin, but a maintained building in which its medieval origins, later history of use and restoration are explained. It makes clear that heritage never belongs to a single period. What visitors now recognise as Radboud Castle is the result of construction, decline, repair and remembrance.

The significance of the castle therefore lies in more than its age. It shows how power was expressed in stone, how West Friesland was brought under Holland’s rule and how a medieval building could change in form and meaning over many centuries. Radboud Castle is at once a coercive stronghold, a museum, a restoration project and a bearer of West Frisian memory.

Further reading