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 Ulm The Free Imperial City of Ulm was a Free Imperial City of the Holy Roman Empire. It is situated on the left bank of the Danube, in a fertile plain at the foot of the Swabian Jura.