However, after Emperor Ninken's death, Matori Oomi, having wanted to be the King of Japan, became tyrannical to govern the nation as he wanted and was feared his power excluding even the Imperial Family, which is considered to be a cause that Kanamura OTOMO by the order of Prince Wakasazaki (later Emperor Buretsu) killed Matori and his son, HEGURI no Shibi in 498.
しかし、仁賢天皇の崩後、真鳥大臣は日本国王になろうと専横を極めて、国政をほしいままにしたため、天皇家をも凌ぐその勢力を怖れられ、稚鷦鷯太子（後の武烈天皇）の命を受けた大伴金村により、真鳥とその子の平群鮪（しび）は誅殺されたという（498年）。