1306 - House of Hachberg-Sausenberg
Rudolph von Baden-Hachberg, the younger son of Heinrich (Henry) II, Margrave of Hachberg, establishes the Hachberg-Sausenberg line. This branch of the extended Baden nobility takes its name from the family seat of Sausenberg Castle near Kandern, built by the Baden-Hachbergs in 1240.
Through Rudolph's marriage in 1298 or 1299 to Agnes, heiress of Rötteln, the Hachberg-Sausenbergs comes into possession in 1315 of Rötteln Castle, near the modern day Swiss border at Lörrach. In 1444 they acquire Badenweiler Castle.
On the death of Philip von Hachberg-Sausenberg in 1503, the Hachberg-Sausenberg line dies out, and its lands and titles are inherited by Christoph (Christopher) I von Baden, Margrave of Baden, thus returning them to the main Baden line. The former Hachberg-Sausenberg land that is the south west corner of Germany is today known as Markgräflerland (Margrave's Land).