Athrwys ap Meurig

Athrwys ap Meurig
King of Ergyng
Reign	c. 645 - c. 655
Predecessor	Gwrgan Fawr
Successor	(none of the same title)
Born	c. 618
Died	c. 655
Father	Meurig ap Tewdrig

Athrwys (sometimes misspelled as Arthwys) was a Prince, possibly a King, from Gwent in Wales, who is generally accepted as having lived in the early 7th century.

Athrwys (spelled Atroys in the 10th century Welsh Harleian genealogies and Andrus in the early medieval Latin Life of Saint Cadoc; also note Andres[us] son of Morcant[us] in the same section of the saint's life, all derived from an early Old Welsh spelling *Antres)) was the son of Meurig ap Tewdrig, a King of Gwent (and probably Glywysing, now known as Glamorgan) by his wife, Onbrawst, or Onbraus the daughter of Gwrgan Fawr, King of Ergyng (Western Herefordshire).

His family relationships are recorded in a number of Old Welsh pedigrees, as well the Book of Llandaff. From her study of the Llandaff Charters in this manuscript, Prof. Wendy Davies has concluded that Athrwys predeceased his father around 655 and never actually ruled in Gwent.

His son was Morgan ab Athrwys or Morgan Mwynfawr 'Morgan the Benefactor' in the Welsh language. Morgan was King of Morgannwg, or Gwent and Glywysing, land as far west as the River Towy and also encompassing land beyond the River Wye, into the old Kingdom of Ergyng, South Herefordshire.

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