Rhodri ab Owain Gwynedd died in 1195.
Dafydd ab Owain Gwynedd died in 1203.
Madoc (Standard Welsh: Madog) ab Owain Gwynedd
Aberystwyth castle, Carnarvonshire. For people from the US that's in Wales, UK.
Owain Owain died in 1993.
Owain Cyfeiliog died in 1197.
Maelgwn Gwynedd died in 547.
Gwynedd Rae died in 1977.
Owain ap Dafydd died in 1325.
Owain ap Hywel died in 987.
Maredudd ab Owain died in 999.
Hywel ab Owain died in 1043.