Biebrich Palace - Credit: Wikimedia Commons
Biebrich Palace () is a Baroque residence (Schloss) in the borough of Biebrich in the city of Wiesbaden, Hesse, Germany. Built in 1702 by Prince Georg August Samuel of Nassau-Idstein, it served as the ducal residence for the independent Duchy of Nassau from 1816 until 1866. Read more on Wikipedia
Source: en.wikipedia.org