A ceremony has been held to mark the 600th anniversary of the English army's surrender of Carmarthen Castle to Owain Glyndwr.
Owain Glyndwr controlled most of Wales by the summer of 1403
Town mayor Peter Hughes Griffiths handed over the keys to the landmark to members of Embassy Glyndwr on Sunday as the events of 1403 were brought to life.
The organisation was set up four years ago to promote the history of the Welsh prince and the Welsh revolt of 1400-1416.
Members spent the weekend travelling the route that Glyndwr and his army took as they marched on Carmarthen.
The capture of the castle caused the almost total collapse of English rule in Wales at that time.
Embassy secretary Sian Ifan said: "Owain Glyndwr gathered a huge army.
"He started in Harlech in north Wales and met up with many of his captains in Aberystwyth.
"This was a central campaign against the castles that were in English hands at the time.
"By the time they came to Carmarthen the English garrison did not even bother to fight.
"He was just given the keys of the castle which was a great victory for Owain Glyndwr and the Welsh.
"It meant English morale was destroyed while Welsh morale was boosted.
The ceremony took place at the castle entrance at Nott Square
"Wales was free in 1403 - everywhere was in his hands."
Ms Ifan said it was important to mark the events of the revolt as they were crucial to understanding Welsh history and how Wales became the country it is today.
A member of the organisation dressed as Glyndwr received the keys from Mr Hughes Griffiths at 1000 BST on Sunday.
Glyndwr's standard was also flown from nearby county hall and St Peter's Church.
During the weekend members also visited other castles in the area that were captured, including Carreg Cennen, Llandovery, Dinefwr and Llansteffan.
Embassy Glyndwr is planning on organising annual events around Wales throughout the anniversary of the 16-year revolt.
Next year will mark the 600th anniversary of the establishment of a Welsh Parliament and Glyndwr being crowned Prince of Wales.
The revolt was ultimately put down and by 1408 the castles of Aberystwyth and Harlech had been retaken.
Nobody really knows what became of Glyndwr as he was never captured.
There is no official record of his death and no burial site has been found for him.
But the favoured theory is that he died at his daughter's home at Monnington Court in Herefordshire in 1416.