Alexander I, posthumously nicknamed The Fierce, was the King of Scotland from 1107 to his death. He succeeded his brother, King Edgar, and his successor was his brother David. He was married to Sybilla of Normandy, an illegitimate daughter of Henry I of England.

Malcolm III was King of Scotland from 1058 to 1093. He was later nicknamed "Canmore". Malcolm's long reign of 35 years preceded the beginning of the Scoto-Norman age. Henry I of England and Eustace III of Boulogne were his sons-in-law, making him the maternal grandfather of Empress Matilda, William Adelin and Matilda of Boulogne. All three of them were prominent in English politics during the 12th century.