Émile Noël, France, 1957–1987 David Williamson, United Kingdom, 1987–1997 Carlo Trojan [nl], The Netherlands, 1997–2000 David O'Sullivan, Ireland, 2000–2005 Catherine Day, Ireland 2005–2015 Alexander Italianer, Netherlands, 2015–2018 Martin Selmayr, Germany, 2018–2019[1] Ilze Juhansone, Latvia, 2019–present