Emperor Ninken Japanese emperors 2019.09.04 2019.06.27 The 24th Emperor of Japan. Emperor Ninken inherits the Y gene The period of reign 488 – 498 Another name 仁賢天皇(Emperor Ninken) 億計天皇(Okenosumeramikoto)大石尊(Ooshinomikoto)意祁命(Okenomiko)意富祁王(Ookenomiko)大脚(Ooshi)大為(Oosu) Mausoleum of Emperor Ninken