Lands forming a barony were often located in several different counties, not necessarily adjoining. The name of such a barony is generally deemed to be the name of the chief manor within it, known as the Caput, Latin for "head", generally assumed to have been the seat or chief residence of the first baron. So, for instance, the barony of Turstin FitzRolf became known as the barony of North Cadbury, Somerset.
