A carte blanche , also known as a letter of freedom , is a mostly royal or princely document that granted certain privileges in the Middle Ages . Thus, the dismissal could, for example, from the servitude granted by a charter or it was the right of privateering as a privateer awarded. Also known is the golden license to the Transylvanian Saxons or the Tyrolean freedom letter .
Other freedoms such as the right to coin , free trade or certain special rights are also referred to as freedoms or privileges.
- Karl Heinz Burmeister : The Feldkirch freedom letter of 1376 . 1996.