Sausenburg Castle was originally the stronghold of the lords of Sausenburg, and is built on a 665 metres high hill. At the beginning of the 12th century, the area was given to the Benedictine monks of the Monastery of St Blaise. The counts of Hachberg acquired the property in 1232 from the monastery. They built the castle in order to protect the area and lived there from 1246. In 1306, the counts founded the Sausenberg dynasty. From that point on, they called themselves the margraves of Hachberg-Sausenberg.
In 1315, Liuthold II of Roetteln, the last male member of his dynasty, bestowed Roetteln to the counts of Hachberg-Sausenberg. He died in 1316. The counts of Hachberg-Sausenberg moved to Rötteln Castle and established their advocates (vogts) on the Sausenberg.
John, the last of the counts of Freiburg, bestowed his property Badenweiler to the margraves of Hachberg-Sausenberg in 1444; the merger of Badenweiler, Rötteln, and Sausenberg marked the beginning of the Markgräflerland.
In 1503, through inheritance, the Sausenburg and the Markgräflerland became part of the Margraviate of Baden. The castle was destroyed in 1678 during the Franco-Dutch War by the army of French Marshal Créquy. At this point, medieval fortifications could not survive long against the advances in artillery and siege warfare.
Today an old circular rampart, a tower and several wall segments remain of the former castle.
References:Dryburgh Abbey on the banks of the River Tweed in the Scottish Borders was founded in 1150 in an agreement between Hugh de Morville, Constable of Scotland, and the Premonstratensian canons regular from Alnwick Abbey in Northumberland. The arrival of the canons along with their first abbot, Roger, took place in 1152.
It was burned by English troops in 1322, after which it was restored only to be again burned by Richard II in 1385, but it flourished in the fifteenth century. It was finally destroyed in 1544, briefly surviving until the Scottish Reformation, when it was given to the Earl of Mar by James VI of Scotland. It is now a designated scheduled monument and the surrounding landscape is included in the Inventory of Gardens and Designed Landscapes in Scotland.
David Erskine, 11th Earl of Buchan bought the land in 1786. Sir Walter Scott and Douglas Haig are buried in its grounds.