Ajdovščina is a town in the Vipava Valley, Slovenia. It is the administrative seat of the Municipality of Ajdovščina. The first mentions of Ajdovščin…Ajdovščina is a town in the Vipava Valley, Slovenia. It is the administrative seat of the Municipality of Ajdovščina. The first mentions of Ajdovščina go back to circa 2000 BC. In the Bronze Age and the Iron Age a fortified settlement stood on the nearby hill of Gradišče. In the early period of the Roman Empire, after a road was built from Aquileia towards Emona, a small post and goods station known as mansio Fluvio Frigido stood on the site of today's Ajdovščina.