| Gwrgan Fawr Gurgantius |
|
|---|---|
| King of Ergyng | |
| Reign | c. 619 - c. 645 |
| Predecessor | Gwrfoddw |
| Successor | Athrwys |
| Offspring | Caradog, Morgan |
| Father | Cynfyn |
Gwrgan Fawr (meaning Gwrgan the Great; also, in Latin, Gurgantius) (died c. 645) was a king of Ergyng, a south-east Welsh kingdom of the early medieval period.
He was the son of Cynfyn and rightful heir to the Ergyng throne which, however, was initially usurped by Gwrfoddw. Gwrgan later features as king in charters in the Book of Llandaff associated with Bishops Oudoceus and Iunapeius.
Another Gwrgan is the Gwrgan Frych ('the Freckled') who appears in the Life of Saint Cadog ruling further west in Glywysing. Cadog died some years earlier, but the association may have really been with the saint's successors at Llancarfan Abbey.
When Gwrgan died, the throne of Ergyng was inherited, not by his sons Caradog and Morgan, but by his maternal grandson, Athrwys.