Bishop Jan Liesen, S.S.D., Titular Bishop of Tunnuna, was consecrated bishop on September 18, 2010 and comes from the Diocese of Roermond. He studied in Rome and Jerusalem and taught at the seminaries in Roermond, Haarlem-Amsterdam en ‘s-Hertogenbosch.He received his doctorate in Sacred Scripture from the Pontifical Biblical Institute of Rome. He is a member of the International Theological Commission, which has an advisory role to the Congregation for the Doctrine of the Faith. Bishop Liesen served as librarian and professor of New Testament Exegesis, Biblical Theology, and Hebrew Bible at the Rolduc Seminary in Kerkrade, Netherlands.