Fürstenberg Castle, Castle ruin on the Fürstenberg hill near Hüfingen, Germany

Fürstenberg Castle is a vanished hilltop castle on the Fürstenberg, a hill 918 metres above sea level by the Fürstenberg district of Hüfingen in the Black Forest-Baar district of Baden-Württemberg. Almost nothing of the structure survives; only the slightest traces of building remain on the hill above the settlement, which was rebuilt at the foot of the mountain after the fire of 1841.

A castle on the Fürstenberg existed probably from the 12th century, built perhaps by ministeriales of the Zähringen based in Neudingen. First documented in 1175, it passed from the Counts of Zollern to the Dukes of Zähringen that year. After the last Zähringen duke died in 1218, Henry of Urach inherited it, moved his residence there by 1250 and called himself Count of Fürstenberg. The castle was rebuilt from the early 16th century, stormed by rebels in the Peasants' War of 1524/25, largely destroyed in 1632 during the Thirty Years' War, and its remains were cleared by the 19th century.

The castle gave its name to the Counts of Fürstenberg: around 1250 Henry of Urach moved his residence here and called himself Count Henry of Fürstenberg. He also expanded the settlement on the hill, which received town rights in 1278. After the town burned in 1841 it was rebuilt at the foot of the mountain and is now part of Hüfingen.

The castle site lies on the Fürstenberg hill at 918 m above sea level near the Fürstenberg district of Hüfingen, in the Black Forest-Baar district. Almost nothing of the structure survives above ground, so look for the faint traces of walls rather than standing ruins. The hill is reached on foot; the former town of Fürstenberg at its foot is now part of Hüfingen.

Only minimal traces of the castle's masonry survive on the Fürstenberg; the hilltop itself, at 918 m, is what remains of the site. The settlement Heinrich of Urach expanded beside the castle received town rights in 1278, and today's Fürstenberg at the foot of the hill is a district of Hüfingen.