Ōyamazumi Shrine (Ōyamazumi Jinja) is located on the island of Omishima in the Seto Inland Sea. The shrine is dedicated to the gods who protect sailors and soldiers. Because of this, many daimyo and other military leaders have made offerings at the shrine in hopes of military success, or in thanks for victory in battle. The offerings of swords, armor, and other military equipment are now housed in the largest museum of fighting equipment used during the age of the samurai in Japan. There are items housed in the shrine which belonged to Minamoto no Yoritomo, founder of the Kamakura Bakufu and first shogun, and to his younger brother, Minamoto no Yoshitsune, who is a widely known tragic hero.