Inaba Masamichi

Who They Were

Inaba Masamichi (稲葉正往) was a samurai and daimyō of the early Edo period, born on 22 December 1640 and dying on 22 November 1716. A daimyō (大名, だいみょう) was a territorial lord — a hereditary military governor who held a domain (藩, はん) and governed it with considerable autonomy while answering to the Tokugawa shogunate. Masamichi ruled three different domains over the course of his life: Odawara in Sagami Province, then Takada in Echigo Province, then Sakura in Shimōsa Province. He also served in the Rōjū (老中, ろうじゅう), the senior council of the shogunate, one of the highest offices a non-Tokugawa lord could hold.

He was the son of Inaba Masanori, a prominent figure in his own right, and of Mōri Makiko. His family, the Inaba, belonged to the upper tier of the daimyō class, and Masamichi's career — multiple domain transfers, culminating in a seat on the shogunate's senior council — reflects the way the Tokugawa regime moved trusted lords into strategically important territories.

Life and Career

Masamichi was born on 22 December 1640, in the seventeenth year of the Kan'ei era (寛永, かんえい). The Kan'ei era was a nengō (年号, ねんごう) — a reign-period name used alongside the Western calendar in Japan until the nineteenth century. His father, Inaba Masanori, was an established daimyō, and Masamichi inherited his position within the Inaba house.

His first recorded domain was Odawara Domain in Sagami Province, in what is now Kanagawa Prefecture. Odawara was a significant posting: the castle town sat on the Tōkaidō, the main road linking Edo (the shogunal capital, modern Tokyo) with Kyoto, and control of Odawara was a mark of shogunal trust. In 1686 he was transferred to Takada Domain in Echigo Province, in the region facing the Sea of Japan — a move that placed him in a different strategic theatre. Later he was transferred again, to Sakura Domain in Shimōsa Province, east of Edo.

Beyond his domains, Masamichi held the office of Rōjū. The Rōjū were the shogunate's senior councillors, a small body of daimyō who advised the shogun and managed day-to-day governance. Appointment to the Rōjū was reserved for lords of sufficient rank and proven loyalty, and it placed Masamichi near the centre of national decision-making. His courtesy title was Mino no Kami (美濃守, みののかみ), a nominal governorship of Mino Province conferred as an honorific rank rather than an actual administrative post.

He died on 22 November 1716, in the Edo period, at the age of seventy-five by the traditional count.

Why They Matter

Masamichi's career illustrates how the Tokugawa shogunate managed its most powerful subordinates. Daimyō were not fixed to a single territory: the shogun could and did transfer them between domains, and Masamichi's three postings — Odawara, Takada, Sakura — trace a path through some of the most sensitive regions of eastern and central Japan. Odawara guarded the western approach to Edo; Takada faced the Japan Sea coast; Sakura lay within the Kantō heartland.

His service on the Rōjū matters for a second reason. The senior council was the mechanism by which the shogunate converted the loyalty of great lords into day-to-day administration. A daimyō who reached the Rōjū had crossed from regional magnate to national officeholder. For the Inaba family, Masamichi's tenure consolidated a position of influence that outlasted him.

His lifespan also brackets a long stretch of the Edo period's relative stability — from the aftermath of the Shimabara upheaval of the late 1630s to the decades of the early eighteenth century — a period in which the shogunate's institutional machinery, including the Rōjū, was consolidated and refined.

The Name in Japanese

The name is written 稲葉正往. In kana it reads いなば まさみち, and in romaji it is Inaba Masamichi. The family name comes first, as is standard in Japanese.

Breaking it down character by character:

稲 (いな, ina) — "rice plant." This is the first character of the surname. It depicts a rice plant and is the same character used in 稲作 (いなさく, inasaku), "rice cultivation."

葉 (ば, ba) — "leaf." Combined with 稲, the two characters form 稲葉 (いなば, Inaba), literally "rice leaves." Note that the reading of 葉 shifts to ba here rather than its more common ha, a typical sound change when characters combine.

正 (まさ, masa) — "correct," "right," "proper." This is the first element of the given name. It is a common component in samurai personal names, where it carries connotations of uprightness.

往 (みち, michi) — "to go," "to proceed," "to depart." Combined with 正, the two characters form 正往 (まさみち, Masamichi). The reading michi for 往 is a kun'yomi, the native Japanese reading, rather than the Sino-Japanese ō.

So the full name breaks into a surname meaning "rice leaves" and a given name meaning roughly "correct path" or "the proper way forward" — an auspicious construction typical of warrior naming conventions. The courtesy title Mino no Kami (美濃守) is separate from the personal name: 美濃 is the province of Mino, and 守 (かみ, kami) means "governor" or "protector."

Legacy

Masamichi's legacy is bound up with the Inaba house and the domains he governed. His transfers — Odawara to Takada in 1686, then to Sakura — left the family's territorial footprint across three provinces, and his seat on the Rōjū placed the Inaba among the shogunate's governing elite. He died on 22 November 1716, and the family line continued; his son, also named Inaba Masanori, is recorded as a successor in the family's records.

For students of the Edo period, Masamichi is a useful example of the daimyō career at its upper end: a lord who began with a strategically vital domain, was moved twice by the shogunate, and ended his life as a senior councillor. His name, 稲葉正往, remains the clearest single marker of that career — a surname tied to the rice fields and a given name asserting the correct path.