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Tagsringfort
9 places carry this tag, across every kind and continent it appears in.
🇮🇪 Ireland · Earthwork
Iron Age to Early Medieval (c.1000 BCE–1100 CE) · Iron Age Gaelic → Early Medieval Uí Néill
Donegal hilltop royal cashel (23.5 m diameter) on Greenan Mountain — northern Uí Néill kingship inauguration fort.
🇮🇪 Ireland · Earthwork
Late Bronze Age to Early Medieval (c.1100 BCE–800 CE) · Atlantic Iron Age / Early Medieval Gaelic
Cliff-edge triple stone fort on Inishmore (6 ha) with massive chevaux-de-frise of jagged limestone — Ireland's most dramatic hillfort.
🇮🇪 Ireland · Earthwork
Early Medieval (8th–14th century CE) over Late Neolithic traces · Gaelic Early Medieval (Eoghanacht / Dalcassian)
Triple-walled Burren cashel on cliff spur above Carran — Early Medieval high-status ringfort with 13 house platforms.
🇸🇪 Sweden · Fortress
Migration Period → Vendel 400–800 Gotland · Gotlandic Iron Age (Gutar, East Scandinavian)
Stavgard — Gotlandic ringfort (Migrations–Vendel Period 400–800 CE, with Iron Age reuse) on Stavgard farm ridge, Burs parish, southeastern Gotland, 35 km southeast Visby.
🇸🇪 Sweden · Earthwork
Iron Age to Medieval (c.400–1300 CE) · Scandinavian Migration/Vendel and Medieval Gotlandic–Swedish
Eketorp, on southeastern Öland's Stora Alvaret limestone plain, is the only fully excavated of Öland's 19 Iron Age ringforts, a concentric limestone-walled fortress 70 m diameter with 53…
🇸🇪 Sweden · Earthwork
Migration Period to Vendel Period (c.400–800 CE) · Gotlandic Iron Age
Pre-Viking ringfort (fornborg) on Gotland's southeast, circular limestone wall 80–100 m diameter enclosing 0.5 ha, with inner house terraces and Iron Age ceramics.
🇩🇰 Denmark · Hillfort
Viking Age (c.980–1000 CE, Harald Bluetooth) · Danish Viking Age
Archetypal Viking ring fortress west of Slagelse on Zealand, 136.5 m diameter circular earthwork with four cardinal gates, internal quadrants with 16 longhouses and outer bailey, built c.980 under…
🇩🇰 Denmark · Hillfort
Viking Age (c.980 CE) · Danish Viking Age
Viking ringfort beneath Odense's former castle at Nonnebakken (Nuns' Hill), 120 m diameter with 13 m wide turf rampart, discovered by C14 and magnetometry under Odinstårnet lot.
🇩🇰 Denmark · Hillfort
Viking Age (c.980 CE) · Danish Viking Age
Viking ringfort 120 m diameter near Hobro, North Jutland, contemporary with Trelleborg (Harald Bluetooth), with identical four-gate geometry and 16 houses plus a cemetery of 30 graves including wagon…
