In particular the remarkable frontier lines which bounded the Roman provinces of Upper (southern) Germany and Raetia, and which at their greatest development stretched from near Bonn on the Rhine to near Regensburg on the Danube, are often called the Limes Germanicus.
As to the roads leading out of Italy, from Aquileia roads diverged northward into Raetia, eastward to Noricum and Pannonia, and southwards to the Istrian and Dalmatian coasts.
Not far from these ancient monuments is the new Raetian Museum, which contains a great collection of objects relating to Raetia (including the geological collections of the Benedictine monk of Disentis, Placidus a Spescha (1752-1833), who explored the high snowy regions around the sources of the Rhine).
It was an important point in the road system of the district, lying on that between Mediolanum and Aquileia, while here diverged to the north the roads up the Athesis valley and over the Brenner into Raetia, and to the south roads ran to Betriacum, Mantua and Hostilia.
A vague tradition connects the house with the Colonna family of Rome, or the Colalto family of Lombardy; but one more definite unites the Hohenzollerns with the Burkhardingers, who were counts in Raetia during the early part of the 10th century, and two of whom became dukes of Swabia.
Along with Africa, Raetia and western Illyricum, it became part of the Italian praefecture; along with the islands of Sardinia and Corsica, it became part of the Italian diocese.
The ease with which so important a conquest had been effected encouraged Justinian to attack the Ostrogoths of Italy, whose kingdom, though vast in extent, for it included part of south-eastern Gaul, Raetia, Dalmatia and part of Pannonia, as Well as Italy, Sicily, Sardinia and Corsica, had been grievously weakened by the death first of the great Theodoric, and some years later of his grandson Athalaric, so that the Gothic nation was practically without a head.
The first step was the annexation of Noricum and Raetia (16-1 5 B.C.), which brought under Roman control the mountainous district through which the direct routes lay from North Italy to the upper waters of the Rhine and the Danube.
By Raetia and Vindelicia, on the E.
Peaks, The General Civil and Military Administration of Noricum and Raetia (Chicago, 1907); full references to ancient authorities in A.
Handing over the reins of government to his mother, he set out in 213 for Raetia, where he carried on war against the Alamanni; in 214 he attacked the Goths in Dacia, whence he proceeded by way of Thrace to Asia Minor, and in 215 crossed to Alexandria.
The soldiers in Raetia, however, proclaimed Valerian emperor; and marching slowly towards Rome he found both his rivals dead, slain by their own soldiers.