Alf of Leifa-steads (~1200-1240) was a Housecarl, commander of the , and liegeman of Skule Bårdsson. He enters history as a Housecarl of Arnbjorn Johnson who was a kingsman. In 1235 he did fealty to Skule becoming his liegeman. In 1239 he was sent into the Uplands as the leader of an army of 500 men to harass the kings men who were hiding in churches or woods. In the spring of 1240 AD. he was sent ahead of Skule's army to scout with a few men- however he ran into enemies led by Earl Knut Haakonsson. One of his men was beheaded by one of Knut's men because the two had a personal quarrel. The result of this exchange is that Knut challenged Skule to a battle at Lierfields. He led the defense at the in 1240 for Skule against King Haakon IV of Norway where he is said to have fought very bravel