(chiefly as postmodifier) Designating a territory in England (and, later, other countries) whose lord had specific royal privileges, or designating a modern administrative area corresponding to such a territory. [from 15th c.]
(historical, chiefly as postmodifier) Designating a ruler or feudal lord with direct powers held from the sovereign. [from 15th c.]
Pertaining to the Elector Palatine or the German Palatinate or its people. [from 16th c.]
Pertaining to a palace, particularly for the Eastern and Western Roman emperors; palatial. [from 16th c.]