Broborg Castle
Description
Broborg is one of Uppland's most magnificent ancient strongholds, strategically placed on a ridge along the former seaway, the "highway" of its day, that led Vikings to Old Uppsala and the Baltic Sea. The castle was built on a high hill, about 40 m above sea level. The castle was used between 6th and 11th centuries.
The castle had an outer and inner wall. The outer wall protected the longest sides to the south and east.The inner wall is almost completely enclosed and has a circumference of about 200 m. There were entrances in the southeast and west.
The visible walls of the stronghold tell its history and the many sagas associated with the site capture our imagination. One such saga is about Grimsa, the daughter of a powerful Viking chieftain who lies buried in a mound near the stronghold.