Norman Conquest of Wales (1067–1282) The only king to unite Wales was , who ruled as King of Wales from about 1057 until his death in 1063. Fourteen years later the
Norman invasion of Wales began, which briefly controlled much of Wales, but by 1100
Anglo-Norman control was reduced to the lowland
Gwent,
Glamorgan,
Gower, and
Pembroke, while the contested border region between the Welsh princes and Anglo-Norman barons became known as the
Welsh Marches. The remaining territory was divided between native Welsh principalities. The leading principality was
Gwynedd, and, with other Welsh princes becoming their vassals, princes of Gwynedd took the title
Prince of Wales. Although English monarchs had made several attempts to seize control of the native Welsh territories, it was not until Edward's war of conquest against Llywelyn, the last native prince of Wales, that this was achieved with the death of Llywelyn in 1282.
Revolts Following the death of his brother,
Dafydd ap Gruffydd led the initial revolts, until his capture by English forces and became the first person to be
Hanged, drawn and quartered for high treason. A cadet member of the House of Aberffraw,
Madog ap Llywelyn would lead
another nationwide revolt in 1294–1295 with another nobleman,
Llywelyn Bren revolting in 1316. While fighting with the French in the
Hundred Years' War,
Owain Lawgoch also made a number of attempts to create an independent Wales with the support of France in the 1370s. The most significant revolt against English rule was the
Glyndŵr Rising of 1400–1415, which briefly restored Welsh independence.
Owain Glyndŵr held the first Welsh parliament () in
Machynlleth in 1404 where he was proclaimed Prince of Wales and a second parliament in 1405 in
Harlech. During the same period, the
Penal Laws against the Welsh people was implemented, restraining Welsh rights which were reaffirmed during the 15th century and were not removed from the statute books until the 17th century.
Annexation During the reign of the King of England
Henry VIII, two statutes were passed that are often referred to as the "
Acts of Union". The laws incorporated Wales (both the
principality and the
march) into the King's empire and imposed English law in Wales. Wales was geographically and legally defined, and the laws allowed the Welsh equal status and representation in the English parliament. Nevertheless, the Welsh did not share in legal or political sovereignty and English was insisted as the official language of government, administration and law, which proved to be unpopular. The
Act of Uniformity 1549 made English the language of the reformed church and no provision was made for a Welsh prayer book. Although the majority of people in Wales belonged to
nonconformist chapels, the Church of England enjoyed legal and social privileges. This led to a widespread view that things could be done differently in Wales.
David Lloyd George, MP for what was then "Carnarvon Boroughs" (which also included several other North Wales towns), was committed to the cause of disestablishment, but it was not until 1914 that the
Welsh Church Act was passed, giving the Church in Wales the freedom to govern its own affairs. The Act came into effect from 1920.
In response to the
Irish demand for "home rule", Liberal prime minister of the UK,
William Gladstone proposed two bills on home rule for Ireland in
1886 and
1893, which both failed. In the same year, the ("Young Wales") movement was founded to further the cause. Their goal was a
devolved assembly, but the movement was disbanded in 1896 amid personal rivalries.
Home Rule All Round After the end of the
First World War, there was widespread belief that "
home rule all round" was an essential part of reformations and discussions of self-government for small nations were considered an essential part of any peace conference. Home rule for Ireland had been enacted via the
Government of Ireland Act 1914 but faced opposition from Ulster unionists and the
1916 Easter Rising proving significant. The UK government considered home rule for Wales and Scotland to avoid making a special case for Ireland. In May 1918, a home rule conference for Wales was held in
Llandrindod mostly attended by
Liberals and a month later, "home rule all round" was in the
Labour manifesto. A stance on federalising the UK was agreed by the
South Wales Labour Federation and
Arthur Henderson believed that a home ruled Wales could be a "modern utopia". Support was widespread in Wales and some Welsh media felt it was imminent. Liberal
Joseph Chamberlain also proposed "Home Rule All Round" for all nations of the United Kingdom, but after the formation of the
Irish Free State in 1922, "home rule all round" lost support.
Plaid Cymru In 1925 ("the National Party of Wales") was founded; it was renamed
Plaid Cymru – The Party of Wales in 1945. The party's principles as defined in 1970 were (1) self government for Wales, (2) to safeguard the culture, traditions, language and economic position of Wales and (3) to secure membership for a self-governing Welsh state in the United Nations. The party's first Westminster seat (MP) was won by Gwynfor Evans in 1966. By 1974 the party had three MPs Following the formation of the Senedd in 1999, Plaid Cymru won 17 of 60 seats in the initial Welsh election of 1999 and 13 seats in 2021. In 1975, Plaid Cymru opposed remaining in the
European Communities (EC). The party stated, at the time, that it felt that the EC's regional aid policies would "reconcile places like Wales to their subordinate position". Nevertheless, 65% of Welsh voters voted to remain in the EC in the
1975 referendum. The EC was incorporated into the
European Union (EU) in 1993.
A Parliament for Wales In the 1950s, the deterioration of the
British Empire removed a sense of Britishness and there was a realisation that Wales was not as prosperous as south-east England and smaller European countries. Successive
Conservative Party victories in Westminster led to suggestions that only through self-government could Wales achieve a government reflecting the votes of a Welsh electorate. The
Tryweryn flooding which was voted against by almost every single Welsh MP, suggested that Wales as a nation was powerless. The
Epynt clearance in 1940 has also been described as a "significant – but often overlooked – chapter in the history of Wales". On 1 July 1955, a conference of all parties was called at Llandrindod by the New Wales Union () to consider a national
petition for a Parliament for Wales. The main leaders were
Megan Lloyd George, the daughter of David Lloyd George, T. I. Ellis, and Sir
Ifan ab Owen Edwards. According to the historian
W. R. P. George, "Megan was responsible for removing much prejudice against the idea of a parliament for Wales". She later presented the petition with 250,000 signatures to the British government in April 1956. rally in Machynlleth in 1949 where the "
Parliament for Wales in 5 years" campaign was started The declaration of
Cardiff as the capital of Wales in 1955, the
Labour Party's 1959 commitment to appoint a
Secretary of State for Wales, the creation of the
Welsh Office in 1965, and the repeal of the
Wales and Berwick Act 1746 two years later seemed to demonstrate a growing nationalist impetus. The
National Assembly for Wales was formed in 1999, which was renamed
Senedd Cymru/Welsh Parliament in 2020. Since the referendum on Welsh devolution in 1997 and formation of the Senedd (then National Assembly for Wales) in 1999, there has been increased support for and trust in the Senedd, with support for it to receive more
devolved powers. Further powers have been granted to the Senedd by the
Government of Wales Act 2006, the
Wales Act 2014, and the
Wales Act 2017. Support for independence has increased from around in 2014 to its highest support of in April 2021 when excluding don't knows. Although in March 2023, a poll showed support for independence had dropped to its lowest level since 2019 to 18%; with the drop potentially being attributed to the prospect of a Labour UK Government. However it increased to another high level in April 2025, with a poll for YesCymru stating 41% supported independence, when excluding don't knows, with 53% of people aged 18 to 24 and 72% of those 25 to 34 supporting it. On the topic of
a referendum, a January 2021 YouGov poll found that 47% of people in Wales opposed one within the next five years while 31% supported it. == Independence movement ==