It is located in the northern part of Sakai city, it is said there was more than 100. 44 of tumuluses such as, mausoleum of emperor Nintoku(the length of the tumulus is 486 meters), mausoleum of emperor Richu(the length of the tumulus is 365 meters), Itasuke mausoleum at east side(the length of the tumulus is 146 meters), Gobyouyama tumulus(the length of the tumulus is 203 meters), Nisanzai tumulus(the length of the tumulus is 290 meters),mausoleum of emperor Hanzei(the length of the tumulus is 148 meters) are at Daisen park at the present time. Most of them are huge large keyhole-shaped tomb mound which was built as a great king of grave in the end of the 4th century or beginning of the 5th century~end of the 6th century. From "Nihon-shoki" ,the name Mozu is renamed when people built mausoleum of emperor Nintoku, deer jumped into the people who worked for the construction and those deer collapse and die. The butcher - bird flew away from deer's ear which ate and tear inside of ear.