First ascent of <a href="https://en.wikipedia.org/wiki/Jungfrau" id="mwbw" rel="mw:WikiLink" title="Jungfrau">Jungfrau</a>, third highest summit in the <a href="https://en.wikipedia.org/wiki/Bernese_Alps" id="mwcA" rel="mw:WikiLink" title="Bernese Alps">Bernese Alps</a> by brothers Johann Rudolf and Hieronymus Meyer.