City on the Magdalensberg

The Magdalensberg settlement served as the likely royal capital of the Celtic Kingdom of Noricum from the third century BCE, became the first Roman administrative center in present-day Austria, and was abandoned around 45-50 CE when the capital moved to Virunum. Subsequent Slavic and Christian use preserved the mountain's sacred status.

The Celtic Norici established their hilltop settlement on the Magdalensberg by the third century BCE, though the mountain may have held sacred significance even earlier. The Norici were part of the Kingdom of Noricum, a confederation of thirteen Celtic tribes that unified around 200 BCE, forming what historians describe as the first state structure on Austrian soil. The mountain served simultaneously as royal seat, sanctuary, and center of the iron trade that made Noricum famous throughout the ancient world.

The settlement's relationship with Rome began not through conquest but through commerce. Around 170 BCE, the Kingdom of Noricum established a formal relationship of hospitium publicum with Rome, a diplomatic agreement of mutual hospitality. Roman merchants from Aquileia, drawn by the legendary quality of Noric iron and steel, established a trading colony on the Magdalensberg. They built within the sanctuary's protective radius because the Celtic sacred precinct guaranteed their safety. Stone buildings appeared by approximately 30 BCE, and the settlement took on an increasingly Roman character while retaining its Celtic foundations.

In 1502, a life-size bronze statue of a youth was discovered at approximately one thousand meters altitude. The Youth of Magdalensberg, as it came to be known, caused a European sensation. A Roman copy of a fifth-century BCE Greek athlete statue, it may have been adapted to represent the Celtic war god Mars Latobius through the addition of new attributes. The original is now in Vienna's Kunsthistorisches Museum, with a replica at the site. The statue's discovery signaled the archaeological wealth that systematic excavation would later confirm.

The settlement's end came not through destruction but through administrative reorganization. Around 45-50 CE, the provincial capital was transferred to the newly founded Virunum in the Zollfeld below. The mountain settlement was abandoned, its population relocating to the valley. But abandonment by one culture did not mean abandonment by all. Slavic peoples adopted the summit for worship of Triglav in the eighth and ninth centuries, and the construction of the summit church eventually Christianized the site.