Fr. prof. William Henn

member of the Order of Friars Minor Capuchin (OFM Cap.); professor at Gregorian University in Rome; expert in the area of ecclesiology and ecumenism; member of the Faith and Order Commission of the World Council of Churches; consultor of the Pontifical Council for Promoting Christian Unity; member of ecumenical dialogue commissions of  the Catholic Church with Pentecostal Churches (1998-2009), with the Baptist World Alliance (2006-2010), with the World Communion of Reformed Churches (since 2011).