Court of Chancery of the County Palatine of Durham and Sadberge
The Court of Chancery of the County Palatine of Durham and Sadberge was a court of chancery that exercised jurisdiction within the County Palatine of Durham (including the wapentake of Sadberge) until it was merged into the High Court in 1972. == Constitution == Even before the Norman Conquest the Bishops of Durham appear to have claimed palatinate or quasi-palatinate rights and jurisdiction.
Source: Wikipedia — Court of Chancery of the County Palatine of Durham and Sadberge (CC BY-SA 4.0)