Although the court at Celliwig is the most prominent in remaining early Welsh manuscripts, the various versions of the Welsh Triads agree in giving Arthur multiple courts, one in each of the areas inhabited by the Britons: Cornwall, Wales and the Old North.
In particular, these texts contain a number of archaisms – features that appear to have once been common in all Brittonic varieties, but which later vanished from Welsh and the Southwestern dialects.
Hen Ogledd, the Welsh-speaking areas of northern England and southern Scotland in the Early Middle Ages
hen | Red Hen Press | Llywarch Hen | Hen Harrier | Ng Eng Hen | Hen Wlad Fy Nhadau | Hen Ogledd | Dyfnwal Hen | The Wise Little Hen | The Little Red Hen | Leafie, A Hen into the Wild | Koko ga Hen da yo Nihonjin | Hen harrier | Hen%C3%A5n | Hen and chicks | fat hen | ''Falcon: Hen Kestrel'' by William Lewin, before 1790. Yale Center for British Art | Cornish game hen |
As an ancestor figure, Coel Hen compares to Dyfnwal Hen, who is likewise attributed with founding kingly lines in the Hen Ogledd.