Madoc or 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 Gwynedd, 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.
"Madoc." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (December 12, 2018). https://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/madoc
"Madoc." The Columbia Encyclopedia, 6th ed.. . Retrieved December 12, 2018 from Encyclopedia.com: https://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/madoc