About his father, Masazane, there remained an anecdote that he had confidence in his son Masasada's skill in dancing, and probably because of this, Masazane got angry when his son Masasada was not selected for the first dance at the Special Festival at Iwashimizu Hachiman-gu Shrinel cerebrated in 1106, and abandoned the festival in the middle of it and returned to Kyoto.
父雅実は雅定の舞の技能に自信を持っていたためか、嘉承元年（1106年）に開催された石清水八幡宮臨時祭における一の舞に雅定が選ばれなかったことに腹を立て、雅実が祭りの途中で帰京してしまったとの逸話がある。