The Kyburg family was a noble family of grafen in the Duchy of Swabia, a cadet line of the counts of Dillingen, who in the late 12th and early 13th centuries ruled the County of Kyburg, corresponding
Comital arms from the Wappenbuch of Ulrich Rösch, abbot of St. Gall (r. 1463–1491).
The House of Zähringen was a dynasty of Swabian nobility. The family's name derived from Zähringen Castle near Freiburg im Breisgau. The Zähringer in the 12th century used the title of Duke of Zähring
Seal of Berthold IV, featuring a lion rampant
Zähringen Castle, c. 1500.
Berthold V on the Zähringer monument in Bern, Switzerland.
Zähringen attributed arms in a stained glass window by Hans Reichle (c. 1570–1642) in Freiburg town hall. There are two traditions of attributed arms, either or an eagle displayed gules (shown here) or gules a lion rampant or, based on the respective coats of arms used in the later medieval period by the counts of Freiburg who claimed the Zähringer inheritance (ancestors of the House of Fürstenberg).