The Yburg is a ruined hilltop castle atop the Yberg, on the western edge of the Black Forest near Baden-Baden, in southwestern Germany.

As the Yburg would have secured the Margraviate of Baden's new southwest border, it can be assumed that they built it at this time.

[1] Until 1369, the Yburg was administered by the Röder von Rodeck family, who served the House of Baden as civil servants.

[4] Edward Fortunatus attempted to assassinate his cousin and rival Ernest Frederick, Margrave of Baden-Durlach, who proceeded to occupy Baden-Baden.

[2] An elliptically-shaped curtain wall at the top of the Yberg encloses both portions and is one of the castle's oldest features.