Cyfraith Hywel (Welsh: [ˈkəvraiθ ˈhəwɛl]; Laws of Hywel), also known as Welsh law (Latin: Leges Walliæ[1]), was the system of law practised in medieval Wales before its final conquest by England. Subsequently, the Welsh law’s criminal codes were superseded by the Statute of Rhuddlan in AD 1284 and its civil codes by Henry VIII’s series of Laws in Wales Acts between 1535 and 1542. Welsh law was a form of Celtic law with many similarities to the Brehon law of Ireland and particularly the customs and terminol
Source: Cyfraith Hywel – Wikipedia
Tim B.
https://en.wikipedia.org/wiki/Welsh_law