Burgruine Flaschberg

{{short description|Castle ruin}}

{{Infobox Military Structure

|name=Burgruine Flaschberg

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|location= Carinthia, Austria

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|image=Ruine Flaschberg.JPG

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|type= Hilltop castle

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|built=first mention 1154

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Burgruine Flaschberg is a castle in Carinthia, Austria.