According to the "Kennaiki" (1447), it is known that he was the son of Imperial Prince Tokiwainomiya Mitsuhito, and he had already become a priest by that time, and his 3rd son was 12 or 13 years old.
『建内記』文安4年（1447年）条によると、常盤井宮滿仁親王の子で、当時既に出家しており、12,3歳になる三男がいたことが分かっている。