For that fact, before Emperor Keitai came to Yamato, he had many consorts and had many children where he lived, and Amekunioshiharakihironiha no mikoto (the later Emperor Kinmei) who was a prince born to Princess Tashiraka was decided unofficially as the legitimate successor.
その根拠に継体天皇は大和に入る以前、現地で複数の妃を持ち沢山の子がいたが、手白香皇女との皇子である天国排開広庭尊(後の欽明天皇)が正当な継承者として内定していた。