Dinefwr eventually fell into English control in 1287 and remained there for centuries, despite Owain Glyndŵr’s attempt to wrest it back during his uprising of 1403.
Yn y pen draw, syrthiodd Dinefwr i reolaeth y Saeson ym 1287 ac yno a fu am ganrifoedd, er gwaethaf ymgais Owain Glyndŵr at ei gipio’n ôl yn ystod ei wrthryfel ym 1403.