text: Until the 20th century Biebrich was a small town (or rather village) and the Summer Residence of the Princes (Fürsten) and (since 1806) Dukes of Nassau, who built up an imposing baroque castle (1700-1744, Architects: Maximilian v. Welsch / Friedrich Joachim Stengel) with a landscape garden (Friedrich Ludwig v. Sckell, 1817-23) at the banks of River Rhine.