Vanduli and Marcomanni.

Between 356 and 358 Ammianus Marcellinus described the Juthungi as a part the Alemanni Alamannorum pars who lived on the boundaries of Italy. During a period of uncertainty they ignored peace treaties and invaded the province of Raetia, now southern Bavaria, and even tried to besiege towns, which was "contrary to their habit". The Romans defeated them and according to Ammianus a small remnant barely