Madog ab Owain Gwynedd
- J. E. Lloyd
- , revised by J. Gwynfor Jones
Madog ab Owain Gwynedd (supp.fl. 1170), supposed discoverer of America, is not mentioned in Annales Cambriae, in Brut y tywysogyon, or in any poem of the time, and there is no contemporary evidence of the existence of any son of Owain Gwynedd (...