The district of Cheb was in 870 included in the new margraviate of East Franconia, which belonged at first to the Babenbergs, but from 906 to the counts of Vohburg, who took the title of margraves of Cheb. By the marriage, in 1149, of Adela of Vohburg with the emperor Frederick I, Cheb came into the possession of the house of Swabia, and remained in the hands of the emperors until the 13th century. In 1265 it was taken by the king Ottokar II of Bohemia, who retained it for eleven years. After being repeatedly transferred from the one power to the other, according to the preponderance of Bohemia or the empire, the town and territory were finally incorporated with Bohemia in 1350, after the Bohemian king became the emperor Charles IV. Several imperial privileges, however, continued to be enjoyed by the town till 1849. It suffered severely during the Hussite Wars, during the Swedish invasion in 1631 and 1647, and in the War of the Austrian Succession in 1742.
Mostly from the 1911 Encyclopedia Britannica.