Kagawa Prefecture (香川県, Kagawa-ken) is a prefecture of Japan located on Shikoku island. The capital is Takamatsu. Kagawa was formerly known as Sanuki Province. For a brief period between August 1876 and December 1888, Kagawa was made a part of Ehime Prefecture. Located in Kagawa's capital city, Takamatsu, the mountain of Yashima was the battlefield for one of the best-known struggles between the Heike and the Genji clans.