thumb|A map of Wales with Merionethshire highlighted. Edeirnion Rural District is the protrusion in the north east of Meirionnydd.|class=notpageimage
thumb|A map of Wales with Merionethshire highlighted. Edeirnion Rural District is the protrusion in the north east of Meirionnydd.|class=notpageimage
Edeirnion or Edeyrnion is an area of the county of Denbighshire and an ancient commote of medieval Wales in the cantref of Penllyn. According to tradition, it was named after its eponymous founder Edern or Edeyrn. It was included as a Welsh territory of Shropshire in the Domesday Book.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).