Hoshina Masayuki
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Hoshina Masayuki
Hoshina Masayuki
Hoshina Masayuki.jpg
Lord of Aizu

Hoshina Masatsune
Personal details
Born(1611-06-17)June 17, 1611
Edo, Japan
DiedDecember 18, 1672(1672-12-18) (aged 61)
RelationsFather: Tokugawa Hidetada
Mother: Oshizu no Kata

Hoshina Masayuki ( , June 17, 1611 - December 18, 1672) was a Japanese daimy? of the early Edo period, who was the founder of what became the Matsudaira house of Aizu. He was an important figure in the politics and philosophy of the early Tokugawa shogunate.


Hoshina Masayuki was born in Edo, the illegitimate son of the 2nd sh?gun, Tokugawa Hidetada. As Masayuki's mother, Oshizu no Kata (1584-1635, later called J?k?-in) was a servant, Hidetada chose to hide the newborn, then named Komatsu (). This was to protect him from potential infanticide at the hands of Oeyo, Hidetada's wife. Komatsu was later secretly given in adoption to Hoshina Masamitsu, a former Takeda retainer, and lord of the Takat? Domain. In 1615, Komatsu first met his father (Hidetada) and step mother (Oeyo). In 1631, Komatsu inherited the Hoshina family headship, as well as the Takat? fief, and changed his name to Masayuki. Later recognized by his father and by his brother, the third sh?gun Iemitsu, he was able to wield great influence in political affairs, and was to consequently see his income rating rise sharply. Masayuki became lord of the Yamagata Domain and was then moved to the Aizu domain (Mutsu Province, 230,000 koku), and founded the Aizu-Hoshina line (known from his son's generation onward as the Aizu-Matsudaira) which was to remain enfeoffed there until the Boshin War.

Masayuki received great political clout with his rise in income, appointment as one of the sh?gun's advisors, and regent during the minority of his nephew, the 4th sh?gun Tokugawa Ietsuna. However, when offered the use of the Tokugawa crest, and the Matsudaira surname, he declined, out of respect to the Hoshina family and its retainers. The crest and surname were adopted during the lordship of his son Masakata.

Masayuki was also a patron of Yamazaki Ansai, one of the early figures in Edo-era Japanese Neo-Confucianism, and together with him wrote the famous Aizu House Code, which included a direct injunction regarding the loyalty of the clan to the Sh?gun.

Having taken most of the steps toward self-deification, Masayuki was enshrined after his death as the kami Hanitsu-reishin (?), at the Hanitsu Shrine near Lake Inawashiro.


  • Father: Tokugawa Hidetada
  • Mother: Oshizu no Kata (1584-1635) later J?k?-in
  • Adopted Father: Hoshina Masamitsu
  • Adopted Mother: Genshoin (d.1622)
  • Wife, Concubines, Children:
    • Wife: Kunihime (1619-1637) daughter of Naito Masanaga
      • Komatsu (1634-1638)
    • Wife: Oman (1620-1691) daughter of Fujiki Hiroyuki later Shokoin
      • Hoshina Masayori (1640-1657)
      • Haruhime
      • Nakahime (1643-1649)
      • Shogen (b.1645)
      • Hoshina Masatsune (1646-1681)
      • Ishihime (1648-1667) married Inaba Masamichi
      • Kamehime (1650-1651)
      • Fuhime (1649-1651)
      • Hoshina Masazumi (1652-1671)
    • Concubine: Ushida no Kata
    • Concubine: Sawai no Kata
      • Kinhime (1658-1659)
    • Concubine: Oki no Kata
      • Matsudaira Masakata (1669-1731)
      • Sanhime (b.1673)


Tokugawa Iemitsu asked the famed swordsman Miyamoto Musashi to paint a screen portraying wild ducks. This was to pass into the hands of Masayuki, who took it with him to Aizu, and kept it as one of his family treasures.


  • Noguchi, Shin'ichi (2005). Aizu-han. Tokyo: Gendai shokan.
  • Ooms, Herman (1975). Charismatic Bureaucrat: A Political Biography of Matsudaira Sadanobu, 1758-1829. Chicago: University of Chicago Press.
  • Tokitsu, Kenji (2004). Miyamoto Musashi - Life and Writings. Boston: Shambhala.

Further Reading

  • Kasuga, Tar? (1985). Hoshina Masayuki-k?: Edo bakusei no genr?: Aizu Wakamatsu-han no oya. Tokyo: Ch?eisha: Hatsubaimoto Seiunsha.

External links

Preceded by
Hoshina Masamitsu
Hoshina family head
Succeeded by
Hoshina Masatsune
Preceded by
Hoshina Masamitsu
Daimy? of Takat?
Succeeded by
Torii Tadaharu
Preceded by
Torii Tadatsune
Daimy? of Yamagata
Succeeded by
Matsudaira Naomoto
Preceded by
Kat? Akinari
Daimy? of Aizu
Succeeded by
Hoshina Masatsune

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



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