the thing that's buried UNDER Wales (Dinas Emrys, before St George was even a thing)

Everyone bangs on about St George but the actual Welsh dragon predates that whole imported English nonsense by centuries. Dinas Emrys, little wooded hill near Beddgelert in Snowdonia. Vortigern (real-ish 5th c. king, Historia Brittonum writes him up around 830) tries to build a fort there and the wa……