He was appointed as a director of the NBB in 1985 and became vice-governor in 1988 and succeeded Jean Godeaux as governor in 1989.
Together with Wilfried Martens, Alfons Verplaetse, and Jef Houthuys, he met at Poupehan between 1982 and 1987 to discuss the social and economic situation of Belgium.
Frans Alfons Janssens | Alfons Verplaetse | Alfons Benedikter | Aloys and Alfons Kontarsky | Alfons von Czibulka | Alfons Rebane | Alfons Karpiński | Alfons de Tous | '''Alfons and Aloys Kontarsky''' performing Karlheinz Stockhausen |