Before Reigen's ascension to the Chrysanthemum Throne, his personal name (imina) was Satohito (識仁); and his pre-accession title was Ate-no-miya (高貴宮).
Reigen was the 16th son of Emperor Go-Mizunoo. His mother was the daughter of Minister of the Center Sonomotooto (内大臣園基音), Lady-in-Waiting Kuniko (新広義門院国子).
Coronation ceremony of Emperor Reigen.
Reigen's Imperial family lived with him in the Dairi of the Heian Palace. This family included at least 13 sons and 14 daughters:
9 July 1654: The birth of an Imperial prince who will become known by the posthumous name of Reigen-tennō.
1654: Prince Satohito, who is also known as Ate-no-miya, is named as heir before the death of his eldest brother, Emperor Go-Kōmyō; however, the young prince is considered too young to become emperor. It is decided that until the young heir grows older, his elder brother will accede to the throne as Emperor Go-Sai.
5 March 1663 (Kanbun 3, 26th day of the 1st month): Emperor Go-Sai abdicated; and Prince Satohito received the succession (senso). Shortly thereafter, Emperor Reigen formally acceded (sokui) and his reign began.
1665 (Kanbun 5, 6th month): Courts of inquisition were established in all the villages of Japan. These courts were charged with discovering and eliminating any vestiges of Christianity in each community.
1666 (Kanbun 6, 4th month): Hokke shu Buddhist religious practices are preserved for those who believe that their spiritual and moral purity may be tainted by close association with others.
View across the roof of Tōdai-ji becomes a panoramic vista as seen from the elevated walkway of Nigatsu-dō.
1667 (Kanbun 7): After fire destroyed the main temple structure, work on rebuilding Nigatsu-dō (二月堂) at Nara commenced.
13 February 1668 (Kanbun 8, 1st day of the 2nd month): A great fire broke out in Edo—a conflagration lasting 45 days. The disastrous fire was attributed to arson.
1669 (Kanbun 9):There was a famine in this year; and a military expedition was sent to northern Honshū against Shakushain's Revolt.
1681 (Tenna 1): Tsunayoshi's investiture as shōgun.
5 February 1682 (Tenna 1, 28th day of the 12th month): A great fire sweeps through Edo.
1681 (Tenna 2): A great famine devastates Kyoto and the surrounding area.
1682 (Tenna 3): Tomohito-shinnō is proclaimed Crown Prince; and the ceremonial investiture is held (after being in abeyance for over 300 years).
26 March 1685 (Jōkyō 2, 22nd day of the 2nd month): Former-Emperor Go-Sai died; and a great comet was observed crossing the night sky.
2 May 1687 (Jōkyō 4, 21st day of the 3rd month): Emperor Reigen abdicates in favor of his fifth son who will come to be known as Emperor Higashiyama.
1687: Former-Emperor Reigen begins to rule as a cloistered emperor; and after abdication, Reigen's new home will be called the Sentō-gosho (the palace for an ex-Emperor).
Kugyō (公卿) is a collective term for the very few most powerful men attached to the court of the Emperor of Japan in pre-Meiji eras. Even during those years in which the court's actual influence outside the palace walls was minimal, the hierarchic organization persisted.
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 Reigen's reign, this apex of the Daijō-kan included:
