Also Romansh: Source: "Vornamen in der Schweiz. Prénoms en Suisse. I nomi in Svizzera. Prenoms in Svizra" (1993) published by the Association of Swiss registrars Https://nossaistorgia.ch/entries/w4LMY94JM2l Https://www.portraitarchiv.ch/portrait?page=116 Http://www.annalas.ch/persunas/display/q:Stefan
Source: "Vornamen in der Schweiz. Prénoms en Suisse. I nomi in Svizzera. Prenoms in Svizra" (1993) published by the Association of Swiss registrars
Https://nossaistorgia.ch/entries/w4LMY94JM2l
Https://www.portraitarchiv.ch/portrait?page=116
Http://www.annalas.ch/persunas/display/q:Stefan