David I was a 12th-century ruler who was Prince of the Cumbrians (1113–1124) and later King of the Scots (1124–1153).
The term "Davidian Revolution" is used by many scholars to summarise the changes which took place in Scotland during his reign. These included his foundation of burghs and regional markets, implementation of the ideals of Gregorian Reform, foundation of monasteries, Normanisation of the Scottish government, and the introduction of feudalism through immigrant French and Anglo-French knights.