Comment by gonzus
5 years ago
Evelyn Widmer-Schlumpf's given name is "Evelyn" and her (adopted?) family name is "Widmer-Schlumpf", so the correct way to refer to her just by her family name would be "Widmer-Schlumpf". [I am Swiss BTW.]
Please keep in mind that many countries / cultures, even Western ones, have a naming tradition different from "first given name / second given name / single family name".
I was typing on my mobile phone and was getting tired of typing out the full name, but you are correct (incidentally, it wouldn't be different in Germany).