The Rugii were an East Germanic tribe who probably migrated from southwest Norway to Pomerania in the 1st century. In the beginning of the 4th century, the Rugii moved southwards and settled at the upper Tisza in ancient Pannonia, in what is now modern Hungary. They were later attacked by the Huns, and they fought alongside Atilla at the Battle of the Catalunian Plains in 451. In 453, they successfully rebelled against the Huns along with other Germanic tribes at the Battle of Nedao, after which they settled in the counties of Waldviertel and Weinviertel which lie north of the Danube. Nowadays these counties are part of Lower Austria but were never part of the Roman province of Noricum.