an Entity references as follows:
The Shibunomaruyama Kofun (渋野丸山古墳) is a Kofun period burial mound, located in the Mitsuiwa hamlet of the Shibuno neighborhood of the city of Tokushima on the island of Shikoku in Japan. It was designated a National Historic Site of Japan in 2009, with the area under protection expanded in 2012