Via Gemina was theRoman road linkingAquileia andEmona (the modernLjubljana).^[1] It was built in 14 AD by thelegio XIII Gemina.^[2] In spite of the name given by its constructors it was said it took its name, the "twin road", from the circumstance that it departed from Aquileia along with theVia Postumia.

The road went from Aquileia and followed theVipava Valley between the mouth of the river Vipava into theSoča atPons Sonti (Gradisca d'Isonzo) and the later town Vipava, through theKarst district toNauportus and Emona (Ljubljana), forming a first itinerary of theAmber Road, which left the Roman territory atCarnuntum.

Nauportus had been plundered by the road builders in 14 AD, according toTacitus.^[3]

• Roman roads in Italy
• Croatia in the Roman era