Welsh law in the context of "Hywel Dda"

Wales (Welsh: Cymru [ˈkəmrɨ] ) is a country that is part of the United Kingdom. Located on the island of Great Britain, it is bordered by the Irish Sea to the north and west, England to the east, the Bristol Channel to the south, and the Celtic Sea to the south-west. As of 2021, it had a population of 3.2 million. It has a total area of 21,218 square kilometres (8,192 sq mi) and over 2,700 kilometres (1,680 mi) of coastline. It is largely mountainous with its higher peaks in the north and central areas, including Snowdon (Yr Wyddfa), its highest summit. The country lies within the north temperate zone and has a changeable, maritime climate. Its capital and largest city is Cardiff.

A distinct Welsh culture emerged among the Celtic Britons after the Roman withdrawal from Britain in the 5th century, and Wales was briefly united under Gruffudd ap Llywelyn in 1055. After over 200 years of war, the conquest of Wales was completed by King Edward I of England in 1283, though Owain Glyndŵr led the Welsh Revolt against English rule in the early 15th century, and briefly re-established an independent Welsh state with its own national parliament (Welsh: senedd). In the 16th century the whole of Wales was annexed by England and incorporated within the English legal system under the Laws in Wales Acts 1535 and 1542. Distinctive Welsh politics developed in the 19th century. Welsh Liberalism, exemplified in the late 19th and early 20th century by David Lloyd George, was displaced by the growth of socialism and the Labour Party. Welsh national feeling grew over the century: a nationalist party, Plaid Cymru, was formed in 1925, and the Welsh Language Society in 1962. A governing system of Welsh devolution is employed in Wales, of which the most major step was the formation of the Senedd (Welsh Parliament, formerly the National Assembly for Wales) in 1998, responsible for a range of devolved policy matters.

England and Wales (Welsh: Cymru a Lloegr) is one of the three legal jurisdictions of the United Kingdom. It covers the constituent countries England and Wales and was formed by the Laws in Wales Acts 1535 and 1542. The substantive law of the jurisdiction is English law.

The devolved Senedd (Welsh Parliament; Welsh: Senedd Cymru) – previously named the National Assembly for Wales – was created in 1999 under the Government of Wales Act 1998 and provides a degree of self-government in Wales. The powers of the legislature were expanded by the Government of Wales Act 2006, which allows it to pass its own laws, and the Act also formally separated the Welsh Government from the Senedd. There is currently no equivalent body for England, which is directly governed by the parliament and government of the United Kingdom.

The United Kingdom has three distinctly different legal systems, each of which derives from a particular geographical area for a variety of historical reasons: English law (in the joint jurisdiction of England and Wales), Scots law, Northern Ireland law, and, since 2007, calls for a fourth type, that of purely Welsh law as a result of Welsh devolution, with further calls for a Welsh justice system.

In fulfilment of its former EU treaty obligations, European Union directives had been transposed into the UK legal system on an ongoing basis by the UK parliament. Upon Brexit, non-transposed EU law (such as regulations) was transplanted into domestic law as "retained EU law", with an additional period of alignment with EU law during the transition period from 31 January to 31 December 2020.

A cantref (/ˈkæntrɛv/ KAN-trev; Welsh pronunciation: [ˈkantrɛ(v)]; plural cantrefi or cantrefs; also rendered as cantred) was a medieval Welsh land division, particularly important in the administration of Welsh law.