Also found in: Wikipedia.
Madog(Madoc ap Owain Gwynedd) (măd`ək, mä`–), fl. 1170?, quasi-historical Welsh prince. According to Welsh legend, Madoc, said to be a son of Owain GwyneddOwain Gwynedd
, d. 1170, prince of North Wales (1137–70). During the troubled reign of King Stephen of England, Owain and other Welsh princes were able to reoccupy much territory earlier wrested from them by the Anglo-Normans.
..... Click the link for more information. , discovered America 300 years before Columbus. Witnesses' accounts of finding supposedly Welsh-speaking Native Americans have served to keep alive the story, which is otherwise unsupported by evidence. He is the subject of Robert Southey's Madoc.