Rubens scholar and director of the Rubenshuis. Baudouin studied during World War II. After the liberation of Belgium he assisted between 1946 and 1948 in the repatriation of artworks stolen by the Nazis. He worked as a research assistant at the Rijksmuseum in Amsterdam where he met the scholars Ludwig Burchard and Roger-Adolf d'Hulst. A delegation of Antwerp city officials visiting the museum in 1949, including the Burgomeister Lode Craeybeckx (1897-1976), noticed his activities and invited him back to his native Belgium.