Kaiseraugst | ||
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Kaiseraugst village center
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Coordinates: 47°33′N 7°44′E / 47.550°N 7.733°ECoordinates: 47°33′N 7°44′E / 47.550°N 7.733°E | ||
Country | Switzerland | |
Canton | Aargau | |
District | Rheinfelden | |
Area | ||
• Total | 4.91 km2 (1.90 sq mi) | |
Elevation | 269 m (883 ft) | |
Population (Dec 2015) | ||
• Total | 5,565 | |
• Density | 1,100/km2 (2,900/sq mi) | |
Postal code | 4303 | |
SFOS number | 4252 | |
Surrounded by | Augst (BL), Giebenach (BL), Grenzach-Wyhlen (DE-BW), Olsberg, Rheinfelden (DE-BW), Rheinfelden | |
Website |
www SFSO statistics |
Kaiseraugst (Swiss German: Chäiseraugscht) is a municipality in the district of Rheinfelden in the canton of Aargau in Switzerland. It is named for the Ancient Roman city of Augusta Raurica whose ruins are situated nearby. The prefix Kaiser- ("imperial") refers to the fact that this town was part of Further Austria, as opposed to neighbouring Augst, which was in the Swiss canton of Basel.
About AD 300, following the loss of the Limes Germanicus and the right bank of the Rhine, the Roman army built a fort near the city of Augusta Raurica. The fort, which was named Castrum Rauracense was intended to serve as the headquarters of the legio I Martia and to protect a ford over the Rhine. During the 4th century, the fort grew in importance because it commanded a bridge that lay along the road from Gaul to the Danube. Emperors Constantius II and Julian assembled their armies at the Castrum Rauracense before marching to battle against the Alemanni.
Following the collapse of the Roman Empire the fort remained occupied as local Germanic tribes moved in. The fort and neighboring church became the seat of a bishop during the 4th century, with the bishop first being mentioned in 346. In the 7th century the bishop moved to Basel and the settlement declined in importance. In 752 a village called Augusta was first mentioned, however it was not until 1442 that the village of Augst split into Augst and Kaiseraugst.