Principality of Heitersheim
The Principality of Heitersheim (Fürstentum Heitersheim) was an imperial estate of the Holy Roman Empire from 1548 until 1806. It was a territory of the Knights Hospitaller (Order of Saint John) consisting of several noncontiguous enclaves in the Breisgau.
Source: Wikipedia — Principality of Heitersheim (CC BY-SA 4.0)