Llywelyn ap Gruffydd Fychan of Caeo (c. 1341 – 9 October 1401) was a Welsh landowner, a squire in effect, who in 1401 organized a decoy of Henry IV's English forces searching for the Welsh resistance leader Owain Glyndŵr. The deception allowed Owain to escape but involved Llywelyn in putting his life on the line. As punishment for his actions, Llywelyn was condemned by the English king to be executed in the town square of Llandovery. The English cut his stomach out and had it cooked in front of him, following which Llywelyn was hanged, drawn and quartered. The English custom is variously described, but there is no doubt that the victim was drawn and quartered first, and hanged afterwards, so he was alive whilst being disemboweled.
A 16-foot-tall (4.9 m) sculpture of an empty-helmeted and cloaked figure, holding a spear and shield, commemorates Llywelyn ap Gruffudd Fychan. Made entirely from stainless steel, it was erected beside Llandovery Castle in 2001, on the 600th anniversary of Llywelyn's execution. The stone base is from the cwmwd of Caio / Caeo which was Llywelyn ap Gruffydd Fychan's home area - and on it is carved the final verse of a Welsh poem.
No historic document says he was used as a decoy, merely that he 'willingly preferred death to treachery'. His death is contemporaneously described as 'drawn, hanged, beheaded and quartered': there is no evidence that he was disembowelled or had his viscera burned. Disembowellment and burning of the intestines were not carried out until later in the century and then were confined to those who had transgressed against God - even traitors were usually spared that fate.
"The Last Mab Darogan: The Life and Times of Owain Glyn Dŵr", C Parry, (Novasys, 2010), ISBN 978-0-9565553-0-4, pp. 105–7.