Celtic, Brythonic, Old Welsh, Irish Gaelic, Scottish Gaelic, Arthurian
Examples: Lachlann, Brigid, Gwydion, Brochmail, Myrddin, Taliesin, Emrys, Gerallt, Ianto, Rhiannon
Reasoning: This leans into the dark fantasy elements of Valdraeth, as Celtic British mythology has many of these themes. It also provides an opposing side to the French Arthurian elements of Avereaux, due to the Mabinogion and other Welsh origins of a lot of that mythos.
Surname Options: With the storytelling/reputational elements of this nation, some surnames are epithets for great deeds, which in turn may become the surnames of entire households:
For example – “Taliesin Swiftstep” “Rhiannon the Hammer” “Brigid Darkspeaker”
Until that point, a generational name with a preposition which indicates gender “ap” to mean ‘son of’, “ferch” to mean ‘daughter of’, “aer” “mac” and “fitz” as a gender-neutral preposition meaning ‘scion of’ or ‘child of’.
For example – “Taliesin ferch Myrddin”, “Gwydion mac Brochmail”, “Emrys ap Gerallt”