1218 - House of Zähringen Dies Out
On 18th February 1218 Berthold V, Duke of Zähringen, founder of Freiburg Cathedral, dies, and with him dies the House of Zähringen. Zähringer land and titles are divided amongst the Holy Roman Empire, the House of Kyburg (vassals of the Duke of Swabia based around Zurich), and the House of Baden.
In their relatively brief existence, the Zähringener founded a number of cities, including Freiburg in south west Germany and Bern in Switzerland. The Zähringen name lives on as a suburb of Freiburg, and in the title 'Duke of Zähringen' resurrected by the House of Baden sometime in the 19th century.