Place of Birth: Tokyo Imperial Palace, Tokyo, Japan
Date of Birth: December 23, 1933
Akihito is the 125th Emperor of Japan, who reigned from 7 January, 1989 to 30 April, 2019. He is the son of Hirohito and Princess Nagako, of Kuni. He is married to Empress Michiko (Michiko Shōda), with whom he has three children, including Naruhito. He is the paternal grandfather of Aiko, Princess Toshi.
Akihito’s patrilineal ancestry can be traced back to his 50th great-grandfather, Emperor Keitai (c. 450–534). However, descent prior to Keitai is unclear to modern historians, but is traditionally traced back patrilineally to Emperor Jimmu.
Akihito’s paternal grandfather was Yoshihito, Emperor Taishō (the son of Mutsuhito, Emperor Meiji, and of Lady Naruko Yanagihara). Yoshihito was born at Tōgū Palace, Akasaka, Tokyo City, Tokyo Prefecture, Japan. Mutsuhito was the son of Osahito, Emperor Kōmei, and of Lady Yoshiko Nakayama. Naruko was the daughter of Count Takamitsu Yanagihara and Lady Utano Hasegawa.
Akihito’s paternal grandmother was Lady Sadako Kujō (the daughter of Prince Kujō Michitaka, of the Fujiwara Clan, and of Lady Ikuko Noma). Sadako was born in Nishikichō, Tokyo Prefecture, Japan. Michitaka was the son of Prince Kujō Hisatada, Regent of Japan, and of Lady Tsuneko Karahashi. Ikuko was the daughter of Yorioki Noma and Lady Kairi Yamokushi.
Akihito’s maternal grandfather was Kuniyoshi, 2nd Imperial Prince Kuni (the son of Asahiko, 1st Imperial Prince Kuni, and of Lady Makiko Izumi). Kuniyoshi was born in Kyoto, Japan. Asahiko was the son of Prince Fushimi Kuniie and Lady Nobuko Toriikōji. Makiko was the daughter of Sir Toshimasu Izumitei and Lady Mako Yatoshi.
Akihito’s maternal grandmother was Princess Chikako Shimazu (the daughter of Prince Shimazu Tadayoshi and Lady Sumako Yamazaki). Tadayoshi was the son of Prince Shimazu Hisamitsu and Lady Chimoko Shimazu, of Echizen-Shimazu.
Source: Genealogy of Akihito – https://en.wikipedia.org