Gavelkind was a system of land tenure chiefly associated with the Celtic law in Ireland and Wales and with the legal traditions of the English county of Kent.

Cyfraith Hywel, also known as Welsh law, 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 Subsequently, the Welsh law's criminal codes were superseded by the Statute of Rhuddlan in AD 1284 and its civil codes by Henry VIII's series of Laws in Wales Acts between 1535 and 1542.