Born 29 December 1962 in Leverkusen, Germany.
1982 to 1983 Military service in Neumunster and Hamburg, Germany.
1984 to 1993 Academic studies at the University of Cologne: History of Law, Byzantine Studies, Ancient History, Medieval and Early Modern History; additional courses in Archaeology, Art History, Classics, and Ethnology.
1986 to 1990 several internships at the Roman–Germanic Museum in Cologne: Methods of archaeological research and presentation, Exhibition concepts etc.
1990 Magister Artium (Master of Arts), supervisor: Prof. Peter Schreiner.
1991 to 1993 fellow of German Academic Scholarship Foundation (Studienstiftung des deutschen Volkes) (Bonn).
1993 Promotion (PhD) (summa cum laude), supervisor: Prof. Peter Schreiner.
1994 to 1995 Research fellow of Alexander von Humboldt-Foundation (Bonn).
1995 to 1997 Research fellow of German Research Foundation (DFG) (Bonn).
Since 1997 employee at the Austrian Academy of Sciences, Vienna; Senior Scientist.
1999 professorial qualification (Habilitation).
Since 2007 adj. Professor (apl. Univ. Professor) for Byzantine Studies at the University of Cologne.
Since 2015 Project leader Asia Minor / Anatolia of the long term project Tabula Imperii Byzantini (TIB) of the Austrian Academy of Sciences.