1124 David I becomes king

David I (Dabíd mac Maíl Choluim) was a 12th-century ruler who was Prince of the Cumbrians, Earl of Northampton and Huntingdon and later King of the Scots (1124–1153). The youngest son of Malcolm III of Scotland and Margaret of Wessex. He spent his early years in Scotland, but was forced on the death of his parents in 1093 into exile by his uncle. Perhaps after 1100, he became a dependent at the court of King Henry I of England. There he was influenced by the Norman and Anglo-French culture of the court. It is to David's reign that the beginnings of feudalism are generally assigned. This is defined as "castle-building, the regular use of professional cavalry, the knight's fee" as well as "homage and fealty".