ERBACH, a town of Germany, in the Land of Hesse, on the Mumling, 2 2 m. S.E. of Darmstadt. Pop. 3,770. It has long been the residence of the counts of Erbach, who trace their descent back to the 1 2th century. In 1532 the emperor Charles V. made the county a direct fief of the Empire. The county was mediatized in 1806.
Erbach has cloth mills and ivory-turning, for which last branch it possesses a technical school. Wool and cattle fairs are held twice a year. The castle contains an interesting collection of weapons and pictures, and in the chapel are the coffins of Einhard, the friend and biographer of Charlemagne, and his wife, Emma.