Just 70 years earlier Wales’s native leader Owain Glyndŵr had disappeared after ten years of fighting for Welsh independence had come to nothing.
Dim ond 70 o flynyddoedd ynghynt, roedd arweinydd brodorol Cymru, Owain Glyndŵr, wedi diflannu ar ôl deng mlynedd o ymladd am annibyniaeth i Gymru, a’r cyfan yn ddiffrwyth.