For example, FUJIWARA no Yorinaga who became the Yushi of his older brother FUJIWARA no Tadamichi fought with his brother at Hogen War, and Kugyo who became the Yushi of his uncle, MINAMOTO no Sanetomo, assassinated his uncle uncle.
兄藤原忠通の猶子になりながら保元の乱でその兄と争った藤原頼長、叔父源実朝の猶子になりながらその叔父を暗殺した公暁などである。