Owen Glendower, Owain Glyndwr, Owain Glyndŵr, or Owain Ap Gruffudd Born: c.1354 Died: c.1416 See all related content → Owain Glyn Dŵr(bornc.1354—diedc.1416) was the self-proclaimed prince ofWaleswhose unsuccessfulrebellionagainstEnglandwas the last major Welsh attempt to throw off Engl...