Regensburg
Regensburg was a Free Imperial City on the northern bend of the Danube. It had gained that status in 1245, and its Stone Bridge connected trade routes towards northern Europe and Venice.
Bavaria took the city in 1486, but the emperor restored its independence in 1496. Regensburg expelled its Jewish community in 1519 and adopted the Reformation in 1542. The Perpetual Diet met there from 1663 to 1806; the city passed to the Principality of Regensburg in 1803 and to the Kingdom of Bavaria in 1810.