CAUB, or KAUB  , a town of Germany, in the Prussian province of Hesse-Nassau, on the right bank of the Rhine, 28 M . N.W. from Wiesbaden, on the railway from Frankfort-on-Main to Cologne . Pop . 2200 . It has a Roman Catholic and an Evangelical church, and a statue of Blucher . The trade mainly consists of the wines of the district . On a crag above the town stands the II members. v . I8 imposing ruin of Gutenfels, and facing it, on a rock in the middle of the Rhine, the small castle Pfalz, or Pfalzgrafenstein, where, according to legend, the Palatine countesses awaited their confinement, but which in reality .served as a toll-gate for merchandise on the Rhine . Caub, first mentioned in the year 983, originally belonged to the lords of Falkenstein, passed in 1277 to the Rhenish Palatinate, and attained civic rights in 1324 . Here Blucher crossed the Rhine with the Prussian and Russian armies, on New Year's night 1813-1814, in pursuit of the French .