Drachenburg Palace, halfway up the Drachenfels above Königswinter, was only built between 1882 and 1884.
The Bonn-born, Paris-based banker and later Baron Stephan von Sarter, who is said to have made a fortune financing the Suez Canal, built the palace as a private residence. However, he never lived in it.
After his death in 1902, it was used for a variety of purposes.
In 1941/42, it housed an Adolf Hitler school and, after the end of the war, the Reich Railway Central School.
The building has been a listed building since 1986 and has been extensively restored by the North Rhine-Westphalia Foundation since 1999.