exchange between the County of Hanau and the Archbishopric of Mainz: the Hanau half of the Amt of Partenstein was ceded to the Archbishopric for a one-half share of the Amt of Bieber, likewise ruled together with Mainz.

In the Thirty Years' War, with quartering of soldiers in the city, supplies were looted, cattle were slaughtered, and the place became susceptible to epidemics and disease.