Although at first, the Imperial Palace used to be Kudara Oinomiya (in terms of the location of which, there are various theories such as Oi, Kawachinagano City, Osaka Prefecture, Kudara, Koryo-cho Kitakatsuragi-gun, Nara Prefecture, Koda, Tondabayashi City, Osaka Prefecture, Sakurai City, Nara Prefecture), following the result of bokusen (divination), it moved to Osata no Sakitama no Miya (Wosada Miya) located in present-day Kaiju, Sakurai City, Nara Prefecture in 575.
初め百済大井宮（くだらのおおいのみや、大阪府河内長野市太井・奈良県北葛城郡広陵町百済・大阪府富田林市甲田・奈良県桜井市など諸説あり）を皇居としたが、575年卜占の結果に従い、訳語田幸玉宮（おさたのさきたまのみや(他田宮）、現在の奈良県桜井市戒重へ遷った。。