The king's ban (German: Königsbann, Latin: bannus, more rarely bannum, from the OHG: ban) was the exercise of royal jurisdiction by a king in the Middle Ages, especially in the Holy Roman Empire.
A specific ban (German: Bann) identified:
The king's ban in the legal history of the Holy Roman Empire was divided into several distinct types depending on their function:
The king used a so-called Bannleihe ("ban investiture") to transfer (invest) the ban, especially the Blutbann, to counts or advocates to exercise.