Can visitors climb the keep at Blankenberg Castle?

No, the round keep is not open for climbing, though the nearby St George's Tower offers wide views over the valleys.

Is the whole castle open to the public?

No, only the main castle area belongs to the city of Hennef and can be visited; the outer bailey is privately owned and closed.

Who built Blankenberg Castle?

The castle was likely built between 1150 and 1180, probably by the Counts of Sayn, before passing to the Counts, later Dukes, of Berg in 1363.

Is there a garden to see at the site?

Yes, a herb garden with over 200 medicinal and culinary plants has occupied the former bastion since 2006.

Blankenberg Castle

Hennef

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Where: Hennef

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Open within 20 km

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Burg Blankenberg (Sieg) stands in Hennef (Rhein-Sieg-Kreis), in North Rhine-Westphalia, Germany. Its opening hours and prices have not been verified at the source yet.

Blankenberg Castle stands on a ridge 152 metres above a bend of the Sieg river, in the Stadt Blankenberg district of Hennef. This medieval ruin still shows a compact fortified layout with four towers, once contested between the Counts of Sayn and the Dukes of Berg. Its round keep remains the tallest structure, while the southern St George's Tower gives views over the Ahrenbach and Sieg valleys. A herb garden has been planted on the former bastion area.

What to know

Only the main castle (Hauptburg), owned by the city of Hennef, can be visited; the outer bailey (Vorburg) is private and closed to the public.
The keep cannot be climbed, but the St George's Tower offers panoramic views over the surrounding valleys.
The herb garden on the bastion is open whenever the castle grounds themselves are accessible.
An annual contemporary art exhibition, 'Kunst auf Burg Blankenberg', has been held in the ruins since 2012.
The site sits on a hilltop above the Sieg river, so visitors should expect a walk with some incline.

Where this château is

Hennef · Rhein-Sieg-Kreis · Nordrhein-Westfalen

Map of the area around Burg Blankenberg (Sieg)

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This châteauChâteaux within 40 km

Address

Burg 1, 53773 Hennef (Sieg)

Directions open from wherever you are, by car or public transport.

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Château phone number

+49 2242 19433

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Heritage status: Protection status unknown

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Frequently asked

Can visitors climb the keep at Blankenberg Castle?: No, the round keep is not open for climbing, though the nearby St George's Tower offers wide views over the valleys.
Is the whole castle open to the public?: No, only the main castle area belongs to the city of Hennef and can be visited; the outer bailey is privately owned and closed.
Who built Blankenberg Castle?: The castle was likely built between 1150 and 1180, probably by the Counts of Sayn, before passing to the Counts, later Dukes, of Berg in 1363.
Is there a garden to see at the site?: Yes, a herb garden with over 200 medicinal and culinary plants has occupied the former bastion since 2006.