Myths & Legends X-Files

The Mystery Of Llywelyn Ein Llyw Olaf

Llywelyn ap Gruffudd is typically seen as the most powerful of all the medieval Welsh princes.

Known as Llywelyn ein Llyw Olaf (Our Last Helm) or just Llywelyn the Last/the Great, he was Prince of Wales from 1258 until his death, which occurred at the Battle of Irfon Bridge, on the banks of the River Irfon at Cilmeri, near Builth Wells.

Llywelyn the Great. Modern depiction by Welsh artist Rhŷn Williams (Image Source)

Mystery surrounds his last days in December 1282. Llywelyn was thought to be mustering forces to resume the war against Edward the First, King of England. During a ceasefire in the fall, while the Archbishop of Canterbury visited Llywelyn at Garth Celyn, the English broke the peace and tried to attack across the Menai Strait. They were defeated by the Welsh. Llywelyn may have tried to take advantage of this setback, by gathering as many as 7000 troops to attack the English. 

However, a Norman knight named Adam de Francton attacked and killed him with a spear. As Llywelyn wasn’t wearing his armour, no one recognized him as the Prince of Wales. Without the leader, the Welsh army scattered in different directions and was quickly massacred.

There are two versions of what had happened:

The first has it that Llywelyn hurriedly returned to the battlefield, but was cut down by a Norman Knight. The second is that Llywelyn and several members of his entourage were separated from the rest of his army and chased into a nearby wood, where he was surrounded and struck down.

The Killing of Prince Llywelyn

The legend says that Adam de Francton hacked off the Llywelyn’s head while he was heavily injured but still alive. The Prince’s head was wrapped up in branches of broom. During their journey to Conwy Castle where the head was to be presented to Edward the First before being exhibited over the gate to the Tower of London, it was placed on the ground for fresh broom to replace the bloodstained branches. It was said the shrub, with its beautiful yellow flowers in season, never grew again in those parts of Wales.

When the heartbroken Welsh found the decapitated body of Llywelyn they were horrified to learn Edward would not allow it to be buried in sacred ground anywhere in England or Wales. They made a grave on the banks of the River Ifron and placed upon it a memorial stone surrounded by thirteen trees to represent thirteen counties of Wales. The grave was in a place previously covered with broom but every trace withered never to grow there again. Eventually, by the intervention of Maude de Longspee, Llywelyn’s relative, his body was re-interred in Abbey of Cwm Hir.

As with the circumstances surrounding his death, Llywelyn’s final resting place is unclear. His body may have been interred at the Cistercian Abbey at Abbeycwmhir, although his body is said to have been enclosed in a stone coffin on land where Llanrumney Hall was later built in Cardiff.

Strange Prophecies of Llywelyn

There are few strange prophecies concerning the last Prince of Wales.

Once prophecy tells of how broom would never grow again where his decapitated head would rest on its macabre journey or where his body would lie in an unblessed grave. Another one says that where even one English soldier crossed the River Iron at Builth, the river would change its course and grass would grow where the river diversion took place. At certain sections of the Iron this appears to have happened.

After his Death

The death of Llywelyn ap Gruffudd marked the end of Wales as an independent country.

Llywelyn had only one child, infant daughter called Gwenllian, so the title Prince of Wales died with him. His wife Eleanor de Montfort had died only in June of 1282 after giving birth to Gwenllian. Leadership of the Welsh following Llywelyn’s death fell to Dafydd, who led a guerrilla resistance for some months but was soon betrayed, captured and executed as a traitor. 

featured image © Copyright Philip Halling


Remembering the last Prince of Wales, killed 738 years ago. By Matt Jones

Welsh Ghostly Encounters (1990) by Jane Pugh

The Welsh Guard Mysteries (2019) by Sarah Woodbury

The last stand of Llywelyn the Last. By Joe Goodden

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  • I live near Llanrumney Hall, which was recently given a massive overhaul and reopened to the public after being a virtual wreck for some years… I had a chat with the manager who told me that Cardiff council came and x-rayed the walls in the 1970s… and it was found that there IS a body in the walls of the building somewhere, although the exact location of the (pressumably) skeleton is now unknown…food for thought!