Paul-Émile Janson served as the 30th Prime Minister of Belgium in 1937–1938. In the early part of the Second World War, Janson served as Foreign minister, and as minister with portfolio, in the government of Hubert Pierlot. He remained in France when the government in exile moved to London. In 1943 he was detained by the occupying German forces and incarcerated in the Buchenwald concentration camp. He died there in 1944.[2][3]