The earliest written form of the name, 'Cetgueli', is recorded by the monk, Nennius, writing in the 9th century. One theory is that the name means the land, territory, or kingdom of Cadwal. Another theory is that the name is the combination of the two words Cyd and Gweli, i.e., the joining of the two river beds Gwendraeth Fawr and Gwendraeth Fach, wherein Cydweli lies. The town itself is ancient, established by written records at around 1106 AD. The substantial and well preserved castle and church were established by the invading Normans in 1106. The earliest castle on the site was a typical Norman motte and bailey design that was made of earth and timber. The 13th century re-design was commissioned by Edward I Longshanks as a strategic part of his 'Ring of Steel' oppression against the Welsh. At the time of the stone castle's creation, Kidwelly benefited from the latest strategic military thinking in castle design. It had a concentric design with one circuit of defensive walls set within another to allow the castle to be held even if the outer wall should fall. The great gatehouse was begun late in the 14th century but it was not completed until 1422, somewhat due to the Welsh rebel Owain Glyndŵr’s efforts to reclaim Welsh independence. A field in the neighbouring forest of Kingswood, Maes Gwenllian is known as the location of a battle in 1136, in which Princess Gwenllian, sister of Owain Gwynedd, led her husband's troops into battle against a Norman army during his absence. She is believed to have been killed either during the battle or shortly afterwards, historians debate whether her death was at Maes Gwenllian or if she was marched back to Kidwelly Castle to be beheaded there. Although being an ancient town, Kidwelly grew significantly during the industrial revolution, as did many other towns in southern Wales. The town was home to a large brickworks and tinworks. Little evidence now exists of such activities since the closure of the industrial works, with the exception of Kidwelly Industrial Museum. The population of Kidwelly in 1841 was 1,563. An atmospheric quotation from a despondent vicar in the nineteenth century provides insight to times gone by;
''Kidwelly Parish Church records, 1851 "Remarks: ... Lords day in this Town is but very little regarded as a day for spiritual worship lick houses are allowed to be open, and frequented during Divine Service. Publick ses are very numerous in this place, and even the Town Clerk keeps a... publick house. Often times on the Lord's day we are not only hear cursing and... once swearing in our streets, but frequently we see most brutal fighting, and... otice taken thereof by the authority of the Town. This is the cause why places ship are so little frequented and religion so little appreciated and professed at Kidwelly." Thomas Griffiths, Vicar
Tourism
Local attractions include Kidwelly Castle, founded in 1106; a fourteenth-century bridge and gate; the former quay ; a Norman parish church, and an industrial museum. Kidwelly Carnival is an annual event held on the second Saturday of July. Previous carnivals have featured aerial displays. The town is twinned with French village Saint-Jacut-de-la-Mer on the north coast of Brittany.
Transport
Road – Kidwelly is connected to Llanelli and Carmarthen by the A484 road. Bus/Coach – There are local buses running through Kidwelly, linking the town with Llanelli and Carmarthen, with a main stop in the town centre. Some services were withdrawn in 2014. There is a Coach Park located in the town centre. Rail – Kidwelly railway station is on the West Wales Line. Westbound services from Kidwelly terminate at Carmarthen or Pembroke Dock, with less frequent direct services to Fishguard Harbour and Milford Haven. Eastbound services terminate at Swansea or Cardiff Central, with less frequent direct services to Manchester Piccadilly and London Paddington. Cycling – Kidwelly is connected to the National Cycle Network along the coast from the east and west by NCR 4. The cycle path runs directly through the town centre. Air – Pembrey Airport is approximately east of Kidwelly. The nearest airport with domestic and international scheduled flights is Cardiff Airport. Walking – There are numerous public footpaths and bridleways in Kidwelly and Mynydd-y- Garreg, including Glan yr Afon, just behind the Wesleyan Chapel on the Bridge and Summer Way off Water Street.