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.
Kaiserpfalz The term Kaiserpfalz (] , "imperial palace") or Königspfalz (] , "royal palace", from Middle High German "phal[en]ze" to Old High German "phalanza" from Middle Latin "palatia" [plural] to Latin "palatium" "palace") refers to a number of castles and palaces across the Holy Roman Empire that served as temporary, secondary seats of power for the Holy Roman Emperor in the Early and High Middle Ages. The term was also used more rarely for a bishop who, as a territorial lord ("Landesherr"), had to provide the king and his entourage with board and lodging, a duty referred to as "Gastungspflicht".