Hiroshima Prefecture (広島県, Hiroshima-ken) is a prefecture of Japan located in the Chūgoku region on Honshu island. The capital is the city of Hiroshima. It has a population of around 2.9 million. The area around Hiroshima was formerly divided into Bingo Province and Aki Province. This location has been a center of trade and culture since the beginning of Japan's recorded history. Hiroshima is a traditional center of the Chūgoku region and was the seat of the Mōri clan until the Battle of Sekigahara.