Waltheof of Scotland, 1st Baron of Allerdale was the son of Gospatric, Earl of Northumberland. He died circa 1138. He gained the title of Baron of Allerdale [feudal]. He held the office of Abbot of Crowland between 1125 and 1138.
Citation: Alison Weir, Britain's Royal Family: A Complete Genealogy (London, U.K.: The Bodley Head, 1999), page 178.