December 31, 1032 entry of "Shoyuki" (The Diary of FUJIWARA no Sanesuke) described that he celebrated his attainment of manhood with his own younger brother FUJIWARA no Nobunaga, and FUJIWARA no Yorimune played the role of Kakan (one to place a crown on the head of boys).
『小右記』長元5年11月26日_(旧暦)（1032年12月31日）条に実弟の藤原信長とともに元服し、藤原頼宗が加冠務めた事が記されている。