<< Text Pages >> Broborg - Hillfort in Sweden in Uppland
Submitted by CharcoalBurner89 on Friday, 06 June 2025 Page Views: 613
Iron Age and Later PrehistorySite Name: BroborgCountry: Sweden Landskap: Uppland Type: Hillfort
Nearest Town: Uppsala Nearest Village: Husby-Långhundra
Latitude: 59.755690N Longitude: 17.951620E
Condition:
| 5 | Perfect |
| 4 | Almost Perfect |
| 3 | Reasonable but with some damage |
| 2 | Ruined but still recognisable as an ancient site |
| 1 | Pretty much destroyed, possibly visible as crop marks |
| 0 | No data. |
| -1 | Completely destroyed |
| 5 | Superb |
| 4 | Good |
| 3 | Ordinary |
| 2 | Not Good |
| 1 | Awful |
| 0 | No data. |
| 5 | Can be driven to, probably with disabled access |
| 4 | Short walk on a footpath |
| 3 | Requiring a bit more of a walk |
| 2 | A long walk |
| 1 | In the middle of nowhere, a nightmare to find |
| 0 | No data. |
| 5 | co-ordinates taken by GPS or official recorded co-ordinates |
| 4 | co-ordinates scaled from a detailed map |
| 3 | co-ordinates scaled from a bad map |
| 2 | co-ordinates of the nearest village |
| 1 | co-ordinates of the nearest town |
| 0 | no data |
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Hillfort in Uppland
Broborg is an Iron Age hillfort located in a forest northwest of Highway 77, northeast of Knivsta in the southernmost part of Uppland, Sweden.
Broborg is Uppland's largest hillfort and is located on a steep mountain slope near Husby-Långhundra. The name Broborg has been known since the 18th century and probably originates from a bridge over the Storån River.
The oval hillfort measures approximately 95.0 × 85.0 meters and has a ring wall, with two ramparts and two entrances. The inner ring measures 85.0 × 70.0 meters. The inner rampart is approximately 300 meters long, 8.0 to 15.0 meters wide, and 1.0 to 2.0 meters high, while the outer rampart is 7.0 to 10.0 meters wide and 0.5 to 1.5 meters high. Both ramparts show traces of masonry. Inside the hillfort is a round stone approximately 7.0 meters in diameter and 0.4 meters high.
The Broborg was partially excavated in 1982. Charcoal dating to the Iron Age was confirmed, which is consistent with a glass bead found. Several buildings were discovered. The wall was constructed of various materials. Northeast of the castle lies the Trinity Spring (Trefaldighetskälla; RAÄ no. Husby-Långhundra 1274:1).
Traces of vitrification have been found, a special type of construction in which the stones in the walls were heated until they became glassy and thus very hard. Analyses of the vitrification show that temperatures of more than 1100 degrees Celsius were required. To achieve this high temperature, box structures along the inside of the wall were probably set on fire. However, it is unclear why this type of construction was chosen.
According to a local legend, the chieftain's daughter Grimsa lived in the hillfort, which was attacked by her brother. She set fire to herself and the hillfort. According to the legend, the fire could be seen as far away as Gamla Uppsala. Nearby is a burial mound that has been called Grimsahögen since at least the 16th century.
- All information was taken from the German and Swedish Wikipedia pages and translated.
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