Breithornzwillinge, Mountain summit in Valais, Switzerland

The Breithornzwillinge, also called Gendarm or Quota, is a 4,106 m peak of the Pennine Alps on the Swiss-Italian border between Valais and the Aosta Valley. It lies in the Breithorn range east of the Theodul Pass, just east of the western Breithorn Twin and west of the Roccia Nera, close to the Eastern Breithorn.

The sources record no first-ascent date for this peak. Its documented history is one of naming and route description: the Breithornzwillinge appears in Alpine literature as the twin of the Breithorn Orientale, which it stands beside, and its eastern ridge and the full Breithorn traverse are described as the lines of ascent from the Grande Ghiacciaio di Verra and the Rossi e Volante bivouac.

The peak's name comes from the German and French word for a police officer, Gendarm, because its outline was seen as a gendarme; Italians call it Quota. It is also known as the eastern Breithorn Twin, since it stands just east of the western Breithorn Twin and close to the Breithorn Orientale, which gave it the twin name.

Access is via established starting points near Zermatt and requires high-altitude climbing equipment and technical skill. Strong mountaineering experience and good physical fitness are necessary to navigate the steep terrain safely.

The peak is also called Gendarm, German and French for police officer, while Italian maps name it Quota. It stands just east of the western Breithorn Twin and west of the Roccia Nera, between the Breithorn Orientale and that dark rock spur. Its east ridge is the usual finish, reached above the track from the Rossi e Volante bivouac.