Prinzenstraße

It is located roughly where the eponymous street crosses the Landwehrkanal in Kreuzberg. The nearby Böcklerpark, a small park with a hall where music events are often held, and the Sommerbad Kreuzberg swimming pool, colloquially called Prinzenbad, are among the most popular venues in central Kreuzberg. The street and subsequently the station were named after Prince William I, the later German Emperor.
The station on the first Berlin U-Bahn line from Potsdamer Platz to Stralauer Tor was opened on 18 February 1902. Because the station is on a viaduct above the junction of Prinzenstraße and Gitschiner Straße, a street level entrance hall could only be erected on its south side on the grounds of a gas plant, while the stairs to the northern platform had to be included in the opposite residential building.

Wikipedia