[152] In the time of Augustus, the Boii, driven from Boiemum by the Marcomanni, retired to Noricum, which from them was called Boioaria, now Bavaria. [153] This people inhabited that part of Lower Hungary now called the Palatinate of Pilis. [154] Towards the end of this treatise, Tacitus seems himself to decide this point, observing that their use of the Pannonian language, and acquiescence in paying tribute, prove the Osi not to be a German nation. They were settled beyond the Marcomanni and Quadi, and occupied the northern part of Transdanubian Hungary; perhaps extending to Silesia, where is a place called Ossen in the duchy of Oels, famous for salt and glass works. The learned Pelloutier, however, contends that the Osi were Germans; but with less probability. [155] The inhabitants of the modern diocese of Treves. [156] Those of Cambresis and Hainault. [157] Those of the dioceses of Worms, Strasburg, and Spires. [158] Those of the diocese of Cologne. The Ubii, migrating from Germany to Gaul, on account of the enmity of the Catti, and their own attachment to the Roman interest, were received under the protection of Marcus Agrippa, in the year of Rome 717. (Strabo, iv. p. 194.) Agrippina, the wife of Claudius and mother of Nero, who was born among them, obtained the settlement of a colony there, which was called after her name. [159] Now the Betuwe, part of the provinces of Holland and Guelderland. [160] Hence the Batavi are termed, in an ancient inscription, "the brothers and friends of the Roman people." [161] This nation inhabited part of the countries now called the Weteraw, Hesse, Isenburg and Fulda. In this territory was Mattium, now Marpurg, and the Fontes Mattiaci, now Wisbaden, near Mentz. [162] The several people of Germany had their respective borders, called marks or marches, which they defended by preserving them in a desert and uncultivated state. Thus Caesar, Bell. Gall. iv 3:--"They think it the greatest honor to a nation, to have as wide an extent of vacant land around their dominions as possible; by which it is indicated, that a great number of neighboring communities are unable to withstand them. On this account, the Suevi are said to have, on one side, a tract of 600 (some learned men think we should read 60) miles desert for their boundaries." In another place Caesar mentions, as an additional reason for this policy, that they think themselves thereby rendered secure from the danger of sudden incursions. (Bell. Gall. vi. 13.) [163] The difference between the low situation and moist air of Batavia, and the high and dry country of the Mattiaci, will sufficiently justify this remark, in the opinion of those who allow anything to the influence of climate.