After his father, Prince Mochihito died in battle against the Taira clan in May 1180, his child, left by the deceased Hokurokunomiya, entered into the priesthood and escaped to Echizen accompanied by his wet nurse's husband, Sanuki-zenji Shigehide.
治承4年（1180年）5月父以仁王が平氏との合戦で敗死すると、その遺児である北陸宮は出家して乳母の夫讃岐前司重秀に伴われて越前へ逃れた。