A Federal Minister for Special Affairs (Bundesminister für besondere Aufgaben) is a federal minister without portfolio of Germany.
Currently, the title is commonly given to the head of the Chancellery to provide him with a vote in cabinet meetings. Historically, appointees have been important political aides or politicians waiting for a portfolio or representatives of certain parties, groups or regions. For instance, several East German politicians were appointed after German reunification in 1990.
List of Federal Ministers for Special Affairs
References
Federal Minister for Special Affairs of Germany Wikipedia(Text) CC BY-SA