Hovgården is best understood together with Birka, the Viking-age trading town on nearby Björkö in Lake Mälaren. The two archaeological sites form one UNESCO World Heritage property, inscribed in 1993. Birka was the commercial settlement; Hovgården, on the neighbouring island of Adelsö, was the royal domain from which the town and its wider region were governed. The short distance across the water links two places with distinct roles in the same political and economic landscape.
Birka grew from the eighth century and became one of northern Europe’s important trading centres between about AD 750 and 980, according to UNESCO. Its location connected waterways around Lake Mälaren with long-distance exchange. Hovgården’s position across the strait was not incidental: a royal residence there could oversee the settlement and the routes that made its trade possible. The paired sites reveal how a trading town depended on authority, transport and access to the surrounding region.