In the paragraph on Shoryoryo (the Bureau for managing imperial mausoleums) of "Engishiki" (an ancient book for codes and procedures on national rites and prayers), it is written that 'Mozu no mimihara no naka mausoleum is located in Otori County, Izumi Province. The area spans about 900 m from east to west, and 900 m from north to south. There are five guard houses,' and the mausoleum is identified with the Daisenryo Tumulus (a large keyhole-shaped tumulus, total length 486m, also called as Daisen Tumulus or Oyama Tumulus), located in Daisen Town, Sakai Ward, Sakai City, Osaka Prefecture.
『延喜式』諸陵寮に「百舌鳥耳原中陵。在和泉国大鳥郡。兆域東西八町。南北八町。陵戸五烟。」とあり、同陵は大阪府堺市堺区大仙町の大仙陵古墳（前方後円墳・全長486m、大仙古墳・大山古墳とも）に比定される。