Owain Glyndŵr in the context of "Wales"

The Glyndŵr rebellion was a Welsh rebellion led between 1400 and c. 1415 by Owain Glyndŵr against the Kingdom of England during the Late Middle Ages. During the rebellion's height, Owain exercised control over the majority of Wales after capturing several of the most powerful English castles in the country, and formed a parliament at Machynlleth. The revolt was the last major manifestation of Welsh independence before the annexation of Wales into England in 1542–43.

The uprising began in 1400, when Owain Glyndŵr, a descendant of several Welsh royal dynasties, claimed the title Prince of Wales following a dispute with a neighbouring English lord. In 1404, after a series of successful castle sieges and battlefield victories, Owain was crowned prince of Wales in the presence of Scottish, French, Spanish and Breton envoys. He summoned a national parliament, where he announced plans to reintroduce the traditional Welsh laws of Hywel Dda, establish an independent Welsh church, and build two universities. Owain also formed an alliance with Charles VI of France, and in 1405 a French army landed in Wales to support the rebellion.

Prince of Wales is a title traditionally given to the male heir apparent to the English, and later, the British throne. The title originated with the Welsh rulers of Gwynedd who, from the late 12th century, used it (albeit inconsistently) to assert their supremacy over the other Welsh rulers. However, to mark the finalisation of his conquest of Wales, in 1301, Edward I of England invested his son Edward of Caernarfon with the title, thereby beginning the tradition of giving the title to the heir apparent when he was the monarch's son or grandson. The title was later claimed by the leader of a Welsh rebellion, Owain Glyndŵr, from 1400 until 1415.

The history of what is now Wales (Welsh: Cymru) begins with evidence of a Neanderthal presence from at least 230,000 years ago, while Homo sapiens arrived by about 31,000 BC. However, continuous habitation by modern humans dates from the period after the end of the last ice age around 9000 BC, and Wales has many remains from the Mesolithic, Neolithic, and Bronze Age. During the Iron Age, as in all of Britain south of the Firth of Forth, the culture had become Celtic, with a common Brittonic language. The Romans, who began their conquest of Britain in AD 43, first campaigned in what is now northeast Wales in 48 against the Deceangli, and gained total control of the region with their defeat of the Ordovices in 79. The Romans departed from Britain in the 5th century, opening the door for the Anglo-Saxon settlement. Thereafter, the culture began to splinter into a number of kingdoms. The Welsh people formed with English encroachment that effectively separated them from the other surviving Brittonic-speaking peoples in the early middle ages.

In the post-Roman period, a number of Welsh kingdoms formed in present-day Wales, including Gwynedd, Powys, Ceredigion, Dyfed, Brycheiniog, Ergyng, Morgannwg, and Gwent. While some rulers extended their control over other Welsh territories and into western England, none were able to unite Wales for long. Internecine struggles and external pressure from the English, and later the Norman conquerors of England, led to the Welsh kingdoms coming gradually under the sway of the English crown. In 1282, the death of Llywelyn ap Gruffudd led to the conquest of the Principality of Wales by King Edward I of England; since then, the heir apparent to the English monarch has borne the title "Prince of Wales". The Welsh launched several revolts against English rule, the last significant one being that led by Owain Glyndŵr in the early 15th century. In the 16th century Henry VIII, himself of Welsh extraction as a great-grandson of Owen Tudor, passed the Laws in Wales Acts aiming to fully incorporate Wales into the Kingdom of England.

The Welsh Dragon (Welsh: y Ddraig Goch, meaning 'the red dragon'; pronounced [ə ˈðraiɡ ˈɡoːχ]) is a heraldic symbol that represents Wales and appears on the national flag of Wales.

Ancient leaders of the Celtic Britons that are personified as dragons include Maelgwn Gwynedd, Mynyddog Mwynfawr and Urien Rheged. Later Welsh "dragons" include Owain Gwynedd, Llywelyn ap Gruffydd and Owain Glyndŵr.

Year 1401 (MCDI) was a common year starting on Saturday of the Julian calendar.

Carmarthenshire (/kərˈmɑːrðənʃər, -ʃɪər/ kər-MAR-dhən-shər, -⁠sheer; Welsh: Sir Gaerfyrddin [ˈsiːr ɡaːɨrˈvərðɪn] or informally Sir Gâr) is a county in the south-west of Wales. The three largest towns are Llanelli, Carmarthen and Ammanford. Carmarthen is the county town and administrative centre. The county is known as the "Garden of Wales" and is also home to the National Botanic Garden of Wales.

Carmarthenshire has been inhabited since prehistoric times. The county town was founded by the Romans, and the region was part of the Kingdom of Deheubarth in the High Middle Ages. After invasion by the Normans in the 12th and 13th centuries it was subjugated, along with other parts of Wales, by Edward I of England. There was further unrest in the early 15th century, when the Welsh rebelled under Owain Glyndŵr, and during the English Civil War.

Llywelyn ap Gruffudd (d. 11 December 1282), also known as Llywelyn II and Llywelyn the Last (Welsh: Llywelyn Ein Llyw Olaf, lit. 'Llywelyn, our last leader'), was Prince of Gwynedd, and later was recognised as the Prince of Wales (Latin: Princeps Walliae; Welsh: Tywysog Cymru) from 1258 until his death at Cilmeri in 1282. Llywelyn was the son of Gruffudd ap Llywelyn ap Iorwerth and grandson of Llywelyn ab Iorwerth (also known as Llywelyn the Great, or Llywelyn I), and he was one of the last native and independent princes of Wales before its conquest by Edward I of England and English rule in Wales that followed, until Owain Glyndŵr held the title during his rebellion of 1400–1415.