The Jungfrau was climbed via the west side for the first time in 1885 by Fritz and Heinrich von Allmen, Ulrich Brunner, Fritz Graf, Karl Schlunegger and Johann Stäger—all from Wengen. They ascended the Rottal ridge (Innere Rottalgrat) and reached the summit on 21 September. The more difficult and dangerous northeast ridge that connects the summit from the Jungfraujoch was first climbed on 30 July 1911 by Albert Weber and Hans Schlunegger.