Born August 1st, 1964, in New York City, USA, as eldest son of Dr. Wilhelm Schlag (first Director of the Austrian Cultural Institute in New York, later Director General in the Austrian Ministry for Science and Research) and Mag Ilse Schlag (Magistra in pharmacy and housewife).

Dual citizenship: US and Austria.

Religion: Roman Catholic


First year at the American International School in Vienna.
1970-1974 Hillhouse International School, London.
1974-1982 Gymnasium “Theresianische Akademie” in Vienna. Matura with „excellent success“ in 1982.
1981-1982 School Student representative

University studies:

1982-1987 undergraduate studies of law at the University of Vienna.
1982-1984 undergraduate studies of archaeology and ancient history at the University of Vienna
1987 Magister iuris, University of Vienna
1987-1989 Doctoral studies and promotion to Doctor iuris. Publication of doctoral thesis, directed by Prof. Felix Ermacora, Member of the UN-Commission on Human Rights and Special Envoyé to Afghanistan (cfr. list of publications).
1984-1994 undergraduate studies of philosophy and theology in Studium generale of the Prelature of Opus Dei.
1994-1996 Licenza di teologia at the Pontifical University of the Holy Cross.
1996-1998 Dottorato di teologia morale at the Pontifical University of the Holy Cross.
2000 Publication of the doctoral thesis directed by Mons. José Maria Yanguas (cfr. list of publications).

Professional Academic Career:

1986-1988 Assistant Professor to Prof. Herbert Hausmaninger, Roman Law.
1986-1988 Chargé d’affairs for foreign students at the faculty of law at University of Vienna.
1989-1994 Assistant professor to Prof. Hans R. Klecatsky, former Austrian Minister of Justice, and then to Prof. Karl Weber, at the Institute of Public law and political science.
My main interests were: human and civic rights in Austrian and European Law, philosophy of law, theory of fundamental rights, Austrian constitutional law.

Since 2008 I am "Professore stabile associato" for Moral Theology at the Pontifical University of the Holy Cross, Rome. The main field of dedication in research and teaching is the social teaching of the Church. Together with Prof. Juan Andrés Mercado I founded and presently direct the Research Center "Markets, Culture and Ethics" at my University (cfr. Our lines of research are: Christian Humanism in Society; the History of Economic Thought and Christian Faith; the Anthropological Bases of Management.

Professional career other than the above mentioned:

1986-1988 Director of Delphin Boys’ Club in Vienna.
1988-1994 Director of the Cultural Centre Sillgraben in Innsbruck.
1992/93 obligatory Military Service in Austria
1996 priestly ordination
1998-2000 pastoral work and participation in the governance of the Prelature Opus Dei in Rome
2000-2008 Regional Vicar of the Prelature Opus Dei for Austria, Hungary, Check Republic, Slovak Republic. Trips to Croatia and Rumania.
2006 appointment to “Capellanus Suae Sanctitatis”.

2012 appointment as Consultant to the Pontifical Council Justice and Peace.


Fluent in German, English, Spanish, Italian
Reading skills in French, Latin and Ancient Greek
Rudimentary knowledge of Czech, Russian

Congresses at which I presented and delivered papers:

1989 Edinburgh, International Association of Jurisprudence and Social Philosophy

1991 Göttingen, International Association of Jurisprudence and Social Philosophy

1995 Lecce, Right to Life in Constitutional Law

1995 Vatican, Pontifical Council for the Interpretation of Legal Texts, on the Right to Life

2007 Graz, Culpability and Atonement

2010 11th German-American Colloquium

2010 Coorganizer of the the First Expert-meeting and congress "Freedom of Markets and the Culture of Common Good", Rome.

2011 Coorganizer of the Second Colloquium on Christian Humanism in IESE, Barcelona

2012 Coorganizer of the Third Colloquium on Christian Humanism in the Catholic University of America, Washington DC.

2013 Katholische Zentralwissenschaftliche Zentralstelle Mönchengladbach together with ComECE Bruxelles, Was hält Europa zusammen?


Scientific Committee of Ordo Socialis
Arbeitsgemeinschaft deutscher SozialethikerInnen

Juristenvereinigung Lebensrecht
ARSP Archiv für Rechts- und Sozialphilosophie
Alumni Theresianum
Alumni University of the Holy Cross



Last modified: Thursday, 9 October 2014, 1:41 PM