Hywel Coetmor was a Welsh knight who took part in Owain Glyndŵr's rebellion. His brother was Rhys Gethin, who was one of Glyndŵr's leading generals.[1] He had earlier fought under the Black Prince at the Battle of Poitiers (1356).
He married Gwenllian, a daughter of Rhys ap Robert (d. 1377), a prominent nobleman who had supported Owain Lawgoch. An effigy of him can be seen in St Grwst's Church at Llanrwst.
- ^ Davies, R. R.; Morgan, Gerald (2009). "3". Owain Glyn Dŵr: Prince of Wales. Ceredigion: Y Lolfa. p. 59. ISBN 978-1-84771-127-4.