In particular, what disturbed Yorinaga was: when Yorinaga made efforts to have his adopted daughter (FUJIWARA no Tashi) taken as a bride by Emperor Konoe, Tadamichi as well had his adopted daughter (FUJIWARA no Teishi) married off.
さらに頼長が養女・藤原多子を近衛天皇に入内させようとすると、忠通も養女・藤原呈子を入内させて頼長を妨害した。