English is a West Germanic language of the Indo-European language family, originally spoken by the inhabitants of early medieval England. It is named after the Angles, one of the ancient Germanic peoples that migrated to the area of Great Britain that later took their name, England. Both names derive from Anglia, a peninsula on the Baltic Sea, which is not to be confused with East Anglia, the Eastern part of England that comprises the counties of Norfolk, Suffolk and Essex. English is most closely related to Frisian and Low Saxon, while its vocabulary has been significantly influenced by other Germanic languages, particularly Old Norse (a North Germanic language), as well as by Old Norman, French and Latin.