1. Overview

Matsudaira Yoritaka (松平 頼位Japanese, March 17, 1810 - December 17, 1886) was a prominent Japanese daimyō during the late Edo period and early Meiji period. He served as the 8th and 10th lord of Shishido Domain in Hitachi Province. After an initial retirement, he returned to head the domain following the death of his son during the turbulent Tengutō Rebellion. Although the domain was temporarily abolished due to its involvement in the rebellion, it was later restored by the new Meiji government, and Yoritaka was appointed as a domainal governor before the final abolition of the domains. In his later life, he became a Shinto priest and was recognized as a prolific writer, contributing to significant literary works of his time. He is also notable for his familial connection as the great-great-grandfather of the renowned Japanese author Mishima Yukio.
2. Early Life and Family
Matsudaira Yoritaka was born on March 17, 1810, as the fourth son of Matsudaira Yorisuke, the 5th daimyō of Shishido Domain. His mother was from the Taguchi clan. At the time of his birth, his father Yorisuke had already retired. Yoritaka's elder half-brother, Matsudaira Yorinori, who had succeeded their father, died young. Consequently, Matsudaira Yorikata, a cousin, was adopted from the main Mito Domain family to become the 7th daimyō.
In 1827, Yoritaka was adopted into the Nagakura Matsudaira family, a branch of the Mito Tokugawa clan with the status of karō (chief retainer). He married Ito (絲Japanese), the adopted daughter of Matsudaira Yoriyoshi and real daughter of Matsudaira Yasufuku, and succeeded to the family's 3,000 koku stipend. During this period, he was granted the title of Chikara-no-kami (主税頭Japanese, Head of the Tax Bureau). His first son, Matsudaira Yorinori (松平 頼徳Japanese), was born on April 3, 1831, followed by his first daughter, Yuki (雪Japanese), on February 26, 1832. Yuki later died on August 26, 1849, at the age of 17.
3. Daimyo Career
Matsudaira Yoritaka's career as a daimyō was marked by significant political changes and personal challenges, including his involvement in the Mito Domain's affairs and the tumultuous events of the late Edo period.
3.1. Succession and Initial Tenure
On May 16, 1839, Matsudaira Yorikata, the 7th daimyō of Shishido, became critically ill without an heir. Yoritaka was promptly adopted as his successor and became the 8th daimyō of Shishido Domain. On December 18 of the same year, he was granted the court rank of Junior Fifth Rank, Lower Grade (従五位下Japanese). As a grand-uncle to both Tokugawa Narinobu and Tokugawa Nariaki, Yoritaka was a prominent member of the Mito family branch.
3.2. Political Involvement in Mito
Prior to his formal appointment as daimyō, Yoritaka actively supported Tokugawa Nariaki's succession to the Mito Domain's main family. Following Nariaki's assumption of leadership, Yoritaka became a key figure in the domain's political reforms. He faithfully followed Nariaki's directives and contributed to the implementation of new policies aimed at strengthening the domain. One notable administrative action during this period was his repair of the Nagakura Castle ruins and the construction of the Nagakura jinya (administrative headquarters) in 1838, undertaken at Nariaki's command.
3.3. Tengutō Rebellion and Domain Abolition
On September 21, 1846, Yoritaka retired from the headship of Shishido Domain, passing the position to his eldest son, Matsudaira Yorinori (松平 頼徳Japanese), who became the 9th daimyō. Despite his retirement, Yoritaka continued to play an advisory role, assisting Tokugawa Yoshiatsu, who had succeeded Nariaki as the head of the Mito main family.
The relative stability was shattered in 1864 with the outbreak of the Tengutō Rebellion in Mito Domain. His son, Yorinori, failed in his efforts to suppress the rebellion, leading to severe repercussions from the Tokugawa shogunate. On October 5, 1864, Yorinori was ordered to commit seppuku at the age of 35. Yoritaka himself was implicated in the events, leading to his confinement, and the Shishido Domain was subsequently abolished.
3.4. Restoration and Later Daimyo Role
In February 1868, with the establishment of the new Meiji government, the Shishido Domain was ordered to be restored. Matsudaira Yoritaka was reinstated as the 10th daimyō. In 1869, his request for hanseki hōkan (the return of domain registers to the Emperor) was accepted, and on May 25, he was appointed as Chihanji (知藩事Japanese, domainal governor) by Imperial order. In 1870, he requested permission to expand the Shishido jinya. However, his tenure as Chihanji was short-lived, as he was relieved of his duties in 1871 due to the Haihan-chiken (廃藩置県Japanese, abolition of domains and establishment of prefectures), which fully integrated the domains into the new centralized government structure.
4. Later Life and Literary Pursuits
After leaving public office, Matsudaira Yoritaka dedicated himself to spiritual and literary endeavors. In 1877, he became a Shinto priest at Tokiwa Shrine. He was highly regarded as a cultural figure and a prolific writer. Among his notable works, he compiled Kokushihen (告志篇Japanese), which documented the achievements and deeds of Tokugawa Nariaki.
He also played a significant role in the publication of the Meirin Kashu (明倫歌集Japanese), a collection of Japanese poetry compiled by Tokugawa Nariaki and others. Yoritaka authored the postscript (batsubun) for the ten-volume collection and oversaw its publication from the Shishido Domain's domain school, Shūtoku-kan (脩徳館Japanese). The collection was subsequently distributed by booksellers in Edo, demonstrating his influence in the literary world.
On July 1880, Yoritaka formally transferred the headship of the family to his second son, Matsudaira Yoriyasu. On September 6, 1883, he was granted the court rank of Junior Fourth Rank (従四位Japanese).
5. Genealogy and Ancestry
Matsudaira Yoritaka's lineage connects him to prominent branches of the Tokugawa clan and its related Matsudaira houses. He was the son of Matsudaira Yorisuke, the 5th daimyō of Shishido Domain. His paternal grandfather was Tokugawa Munemoto, the 5th daimyō of Mito Domain. Further back, his paternal great-grandfather was Tokugawa Munetaka, the 4th daimyō of Mito. Through this line, Yoritaka was a direct descendant of the Mito Tokugawa family, one of the three main branches of the Tokugawa clan. His paternal great-great-grandfather was Matsudaira Yoritoyo, the 3rd daimyō of the Takamatsu Domain, linking him to another significant Matsudaira branch.
Yoritaka's family included:
- Spouse:** Ito (絲Japanese), adopted daughter of Matsudaira Yoriyoshi, real daughter of Matsudaira Yasufuku.
- Children:**
- Matsudaira Yorinori (松平 頼徳Japanese), his eldest son, who became the 9th daimyō of Shishido.
- Yuki (雪Japanese), his eldest daughter.
- Tei (珽Japanese), his second daughter, who married Kakei Masanori.
- Matsudaira Yoriyasu (松平 頼安Japanese), his second son, who succeeded him as family head.
- Taka (高Japanese), his third daughter.
- Matsudaira Yorihira (松平 頼平Japanese), his third son, adopted by Hakozaki Hirotada and later by Matsudaira Yoshinori.
- Tsuyako (艶Japanese), his fourth daughter, who married Ishida Yoshishige.
- Ei (鋭Japanese), his fifth daughter.
6. Legacy and Connection to Mishima Yukio
Matsudaira Yoritaka's lineage continued to be significant in Japanese society. His second son, Matsudaira Yoriyasu (1856-1940), succeeded him as the family head in 1880. Under the new peerage system established in the Meiji era, Yoriyasu was granted the title of Viscount (shishaku 子爵Japanese), reflecting the family's continued status.
Yoritaka's most notable legacy through his descendants is his connection to the internationally acclaimed author Mishima Yukio. Yoritaka's third daughter, Matsudaira Taka (松平 高Japanese, 1857-1923), married Nagai Iwanojō (永井 岩之丞Japanese, 1845-1907), who was the son of the famous Nagai Naoyuki. Their daughter, Natsu (なつJapanese), became the grandmother of Mishima Yukio (born Kimitake Hiraoka). This familial link establishes Matsudaira Yoritaka as Mishima Yukio's great-great-grandfather, connecting the daimyō's aristocratic lineage to one of Japan's most influential modern literary figures.
7. Death
Matsudaira Yoritaka died on December 17, 1886, at the age of 76 (or 77 by traditional Japanese reckoning).