The Zähringer dynasty ended with the death of Berchtold V in 1218, and their cities subsequently thus became independent, while the dukes of Kyburg competed with the house of Habsburg over control of the rural regions of the former Zähringer territory.
The Zähringer dynasty ended with the death of Berchtold V in 1218, and their cities subsequently became reichsfrei (essentially a city-state within the Holy Roman Empire), while the dukes of Kyburg competed with the house of Habsburg over control of the rural regions of the former Zähringer territory.