Leges inter Brettos et Scottos
The Leges inter Brettos et Scottos or Laws of the Brets and Scots was a legal codification under David I of Scotland (reigned 1124 – 1153). Only a small fragment of the original document survives, describing the penalties for several offences against people.
Source: Wikipedia — Leges inter Brettos et Scottos (CC BY-SA 4.0)