Alabu is an ancient settlement on which the tribes of the Jutes lived. Frequent intertribal wars made Alabu a place for raids by other Germanic tribes, such as Rugii, Danes, Geats, etc. Around the 5th-6th centuries, the settlement was destroyed by this settlement because of which the Jutes left Scandinavia. 5 centuries Alabu was a trading port in the north of Jutland. In 1040, Alabu was destroyed and a new city, Aalborg, appeared in its place.