A region of northwest Italy on the Ligurian Sea, an arm of the Mediterranean Sea between northwest Italy and Corsica. Named for an ancient pre-Indo-European people, the Ligurii, the region was subdued by the Romans in the 2nd century B.C. and was later (16th-19th century) controlled by Genoa. A small section of the coastline surrounding Genoa formed the Ligurian Republic from 1797 until 1815.