Triquetra · page 17 of 33
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Three arcs, one unbroken line
Þríhyrningr — the trinity knot
Insular and Norse · 7th–11th c.A three-lobed knot of interlaced vesicae, cut on Norse memorial stones and later absorbed wholesale into insular Christian art.
The full sign, drawn at high resolution.
The triquetra appears on Germanic and Norse objects from the 7th century onward — on the Funbo runestone in Uppland, on coins of Olaf Guthfrithsson of Northumbria, and on Norwegian church portals carved in the surviving stave-church idiom. It travelled easily between pagan and Christian hands because it argued for the same thing in both: three that are one.
Three is the structural number of Norse thought: three Norns, three roots of Yggdrasil, three sons of Borr, the triple death of sacrifice. The knot has no beginning and no terminus, so it renders eternity as a geometry. Read alongside a goddess it is often taken as maiden, mother, crone; read alongside the cosmos, as earth, sea and sky.
Carved on grave markers, doorframes and drinking horns; also worked into the borders of runestones as a protective closure of the inscription.
Extremely common in Celtic-Norse jewellery, frequently used to mark a bond between three — a family, a vow, a lineage.
“Thence come the maidens, mighty in wisdom, three from the lake that stands beneath the tree.”
Vǫluspá, st. 20
Historical context
The triquetra is evidence of contact. The same knot decorates the Book of Kells, Pictish stones, Anglo-Saxon brooches and Harald Bluetooth's Danish coinage — the material trace of a North Sea in which raiders, traders, slaves, monks and craftsmen moved constantly between Ireland, Britain and Scandinavia. Norse settlers in Dublin, York and the Isles absorbed Insular ornament and carried it home.
Its meaning is unfixed and always has been. On a Christian manuscript it can read as the Trinity; on a Norse stone it sits beside Thor's hammer and Odin's ravens; on the Funbo stone in Uppland it appears with Christian and pagan matter together. That flexibility is why it survived the conversion when other signs did not.
A pure interlace figure: three vesica lobes woven over-under with no beginning or end, drawn with compass work by scribes and reproduced in filigree, casting and stone. Its geometry made it a natural die motif for coins.
Read today as Trinity, as maiden-mother-crone, as mind-body-spirit and as a Celtic emblem. All are modern glosses layered on a shape whose Viking-Age meaning was already plural.
The long study
Latin triquetrus, “three-cornered”, applied by antiquarians. The Norse had no recorded name for it; the shape belongs to a shared insular and Germanic decorative vocabulary rather than to a single named symbol.
Three vesica-piscis arcs interlaced with three-fold rotational symmetry, drawn as one continuous over-under band. Frequently the weave is bound by an enclosing circle — added not for meaning but because it locks the interlace and makes the over-under reading unambiguous.
A triquetra worked into a Christian-era memorial carving.
The knot used as a die motif on Scandinavian coin issues.
The same knot in the shared North Sea interlace repertoire.
“It is specifically a Viking pagan symbol.”
It is a pan-European ornamental knot used by pagans and Christians alike, often with no doctrinal content at all.
“It always means the triple goddess.”
That reading is twentieth-century neopagan. Medieval use is ornamental or Trinitarian.
Cross-references
No sign in this book stands alone. These are the ones that share its myths, its monuments or its makers — and why.
The straight-line and the curved-line answer to the same three-fold impulse; they appear on the same monuments and are the pair most often mistaken for each other.
Another three-part Gotlandic figure — three vessels rather than three lobes, both turning on the sacred number three.
Three interlocking curves and three Norns: the triquetra is the tidiest picture of the Norse habit of counting fate in threes.
Kept privately in this browser and appended to the printable PDF for Triquetra.
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