http://galwadglyndwr.blogspot.com/2020/06/21-mehefin-1404-troad-y-rhod.html
http://banerglyndwr.blogspot.com/2020/03/ymlaen-baneri-glyndwr-sticker-campaign.html
Dyma Lysgenhadaeth ei fawrhydi Owain Glyndŵr, Owain ap Gruffydd Fychan, y sawl a gyhoeddwyd yn Dywysog Cymru ar Fedi 16, 1400 ac a goronwyd ym mis Mehefin 1404 yn dilyn sefydlu ei Senedd Gymreig ym Machynlleth. Embassy of his Majesty Owain Glyndwr, Owain ap Gruffydd Fychan, Owain IV Tywysog Cymru;he who was declared Tywysog Cymru at Llys Glyndyfrdwy on 16 Medi 1400 and Crowned in Machynlleth in Mehefin 1404 following his establishment of Senedd Cenedl Glyndŵr.
http://galwadglyndwr.blogspot.com/2020/06/21-mehefin-1404-troad-y-rhod.html
http://banerglyndwr.blogspot.com/2020/03/ymlaen-baneri-glyndwr-sticker-campaign.html