Emperor En'yū
Emperor En'yū (円融天皇 En'yū Tennō) (959-991) was the 64th imperial ruler of Japan. He ruled from 969 to 984, according to the traditional order of succession. His given name was Prince Morihira (守平親王).
He was the fifth son of emperor Emperor Murakami by the empress consort Anshi, the daughter of Fujiwara no Morosuke, therefore the brother of Emperor Reizei.
In 967 he was appointed as the crown prince, bypassing his elder brother by the same mother, since his brother had no support from the Fujiwara clan.
In his reign there were a severe struggle between the Fujiwara clan over who would be appointed the Kampaku regent. Emperor En'yū followed his mother's advice and favored Fujiwara no Kanemichi, his maternal uncle. He had only one son, later the emperor Emperor Ichijō by Senshi, a daughter of Fujiwara no Kaneie, another brother of his mother. He made the daughter of Kanemichi the empress consort, though she bore no children. Senshi and his father Kaneie were angry at this elevation of their rival and were absent from the court for a long time, staying at the mansion of Kaneie with the child.