Adventists in German-speaking Switzerland elected a new church leader Zurich/Switzerland | 14.03.2017 | Switzerland The Adventists in German-speaking Switzerland elected Pastor Stephan Sigg (51) as their new president at their delegation meeting in the Congress House in Zurich on 12 March. Sigg will take over the church leadership from Günther Maurer, who has held this function for two terms since 2009.