Palatine - high-level official attached to imperial or royal courts in Europe since Roman times

"A palatine or palatinus is a high-level official attached to imperial or royal courts in Europe since Roman times. The term palatinus was first used in Ancient Rome for chamberlains of the Emperor due to their association with the Palatine Hill. The imperial palace guard, after the rise of Constantine I, were also called the Scholae Palatinae for the same reason. In the Early Middle Ages the title became attached to courts beyond the imperial one; one of the highest level of officials in the papal administration were called the judices palatini. Later the Merovingian and Carolingian dynasties had counts palatine, as did the Holy Roman Empire. Related titles were used in Hungary, Poland, Lithuania, the German Empire, and the Duchy of Burgundy, while England, Ireland, and parts of British North America referred to rulers of counties palatine as palatines. - Wikipedia"