Burkhard von Weisbriach was an ecclesiastical principality whose capital was the former city of what?
Burkhard Weisbriach Burkhard von Weisbriach (died 1466) was a German Roman Catholic cardinal and Prince-Archbishop of Salzburg from 1461 until his death.
Free Imperial City of Besançon The Free Imperial City of Besançon was a self-governing city that was part of the Holy Roman Empire.