Antonio (Toni) Zweifel
Industrial engineer and layman of Opus Dei in Zurich
Who they were
An industrial engineer who worked in Switzerland and, as a layman of Opus Dei, promoted development projects in more than thirty countries; he died in Zurich in 1989.
The miracles
No miracle has been approved. The cause is at its first stage.
Why that counted as sanctity
The diocesan inquiry opened in Chur on 22 February 2001, the nihil obstat followed on 7 October 2005, and the inquiry closed on 2 July 2020.
The cause
The cause continues. No postulation address is published here yet. Favours received through this person’s intercession, and offers of help, are best sent to the religious order or congregation they belonged to, or to the diocese where the cause was opened; either will pass them to the postulation.
Checked against the sources listed on 24 September 2026. Corrections welcome.