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Hardegg

The Top 20 Castles around Hardegg

A visit to a castle — whether you stumble over one during a hike outdoors or walk your way around the grounds with a guide — is always something special, and you’ve got 20

beautiful castles to choose from around Hardegg. Just browse our list to find your top castle , and add some history to your next adventure!

Last updated: October 22, 2025

Hardegg Castle

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In 145, Hardegg was first mentioned in a certificate from Elisabeth von Schleunz, and “Otto de Hardeck” is cited as a witness to the donation. But before that there was …

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Kaja Castle Ruins

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Relatively well-preserved castle ruins. Definitely worth a detour if you are hiking through the Kajatal from the Thaya up towards Merkersdorf. It is not always open though.

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In 1358, the Moravian margrave Johann Heinrich of Luxemburg had his sovereign seat, the so-called older castle, built 80 m above the river Thaya.
In the 15th century the castle …

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Niederfladnitz Castle

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Stands in the middle of the village on a busy intersection.

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Gatterburg Castle

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The original Althof Castle in the northwest corner of the city fortifications of Retz was destroyed by the Hussites (Taborites) in 1425/1427. In the southeast corner of the city fortifications …

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Other adventures around Hardegg

Cliffs, a gorge and vineyards – day hikes in the Waldviertel

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Looking for the best castles somewhere else? Discover other guides around Hardegg:

Hohenwarth-Mühlbach a.M.MaissauRetzPulkauSchrattenthalRetzbachRavelsbachSitzendorf an der SchmidaZiersdorfZellerndorfHeldenbergWullersdorfGöllersdorfNappersdorf-KammersdorfGrabernPernersdorfGuntersdorfMailbergHaugsdorfAlberndorf im PulkautalHadresSeefeld-Kadolz

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