Sir John Clanvowe (c. 1341 – 17 October 1391) was a Welsh diplomat, poet and chamber knight to Richard II. He was born to a Marcher family and was possibly of mixed Anglo-Welsh origin, holding lands that would lie in the present-day Radnorshire district of Powys and in Herefordshire.[2]
^Sir John Maclean and W. C. Heane, eds., The Visitation of the County of Gloucester Taken in the Year 1623 by Henry Chitty and John Phillipot as Deputies to William Camden Clarenceux King of Arms, etc, London, 1885, p. 130, pedigree of Poyntz, as quartered by Poyntz (mullets or "according to official record in the Heralds' College", footnote 1)
^McFarlane, K.B. (1972). Lancastrian Kings and Lollard Knights. Clarendon Press. pp. 163–165, 231. McFarlane believed that his mother was a Talbot from the diocese of Hereford.