Great Great Great Grandfather John Davis

My Great Great Great Grandfather, John Davis, may have been born in Merthyr Tydfil, at one time called the iron metropolis of Wales. The town is said to owe its name to Tydvil, the daughter of Brychan, the King of the district and very devout old man, who was murdered in 420 by a party of marauding Saxons, or, variously, Irish Picts, together with her father and brother. A church was erected on the spot to her memory and named after her, MerthyrTydvil, or Tydvil the Martyr. Tydvil is not an uncommon feminine name in Wales to this day.