In April 1947, the BCSV became associated with the federal Christian Democratic Union (CDU), renaming itself to CDU Baden and was thus a predecessor of CDU Baden-Württemberg.
Aprillis 1947 ühines BCSV föderaalse Kristlik-Demokraatliku Liiduga (CDU), võttes nimeks CDU Baden ja olles nii CDU Baden-Württemberg eelkäijaks.