Editing Llywelyn ap Gruffudd (section)

== Coat of Arms ==
[[File:COA Llywelyn ap Gruffudd.jpg|thumb|left]]
The Arms of Llywelyn ap Gruffudd (and of [[Owain Glyndŵr]] and [[Owain Lawgoch]]) are here shown graphically, being reproduced from the image on a roll of painted arms c. 1270–1280{{refn|As documented by Siddons.|group=note}}<ref>Siddons M. P.; "The Development of Welsh Heraldry", Vol. 1, pl. XXII(a), NLW 1991.</ref> Other rolls exist where variations of the coat of arms are found.