was the 63rd emperor of Japan, according to the traditional order of succession.
Reizei's reign spanned the years from 967 through 969, ending with his abdication and retirement.
Before his ascension to the Chrysanthemum Throne, his personal name (his imina) was Norihira-shinnà  (æÂ²å¹³è¦ªçÂÂ).
Norihira-shinnà  was the second son of Emperor Murakami. His mother, Empress Yasuko, was a daughter of minister of the right Fujiwara no Morosuke. Soon after his birth he was appointed as crown prince, displacing the Emperor's first-born son with the daughter of Fujiwara no Motokata. This decision was supposedly made under the influence of Morosuke and his brother Fujiwara no Saneyori who had seized power in the court. Motokata soon died, in despair at having lost the prospect of being grandfather to the next emperor. The malevolent influence of Motokata's was blamed for Norihira-shinnà Âs mental illness, which resulted in Saneyori acting as regent for the duration of his short reign.
From ancient times, there have been four noble clans, the Gempeità Âkitsu (æºÂå¹³è¤æ©Â). One of these clans, the Minamoto clan (æºÂæ°Â) are also known as Genji, and of these, the Reizei Genji (å·æ³ÂæºÂæ°Â) are descended from 63rd emperor Reizei.
Questions about mental illness made Norihira-shinnà Âs succession somewhat problematic.
In 967 his father Murakami died and Reizei ascended to the throne at the age of eighteen.
The actual site of Reizei's grave is known. This emperor is traditionally venerated at a memorial Shinto shrine (misasagi) at Kyoto.
The Imperial Household Agency designates this location as Reizei's mausoleum. It is formally named Sakuramoto no misasagi
is a collective term for the very few most powerful men attached to the court of the Emperor of Japan in pre-Meiji eras.
In general, this elite group included only three to four men at a time. These were hereditary courtiers whose experience and background would have brought them to the pinnacle of a life's career. During Go-Toba's reign, this apex of the Daijà Â-kan included:
The years of Reizei's reign are more specifically identified by more than one :
Empress (Chà «gà «): Imperial Princess Masako (æÂÂÃ¥ÂÂå 親çÂÂ) later Kanon'in taigà  (観é³é¢太åÂÂ), Emperor SuzakuâÂÂs daughter
Consort (Nyà Âgo): Fujiwara no Kaishi/Chikako (è¤åÂÂæÂÂÃ¥ÂÂ, 945âÂÂ975), Fujiwara no KoretadaâÂÂs daughter
Consort (Nyà Âgo): Fujiwara no Chà Âshi/Tà Âko (è¤åÂÂè¶ åÂÂ; d.982), Fujiwara no KaneieâÂÂs daughter
Consort (Nyà Âgo): Fujiwara no Fushi/Yoshiko (è¤åÂÂæÂ¤åÂÂ), Fujiwara no MorosukeâÂÂs daughter