Which university is Switzerland's oldest university and has Jean Pieters as a professor?
University of Basel The University of Basel (German: "Universität Basel") is located in Basel, Switzerland. Founded on 4 April 1460, it is Switzerland’s oldest university and is counted among the leading institutions of the country.
University of Graz The University of Graz (German: "Karl-Franzens-Universität Graz"), located in Graz, Austria, is the largest and oldest university in Styria, as well as the second-largest and second-oldest university in Austria.