Sendai Castle — 仙台城 (せんだいじょう, Sendai-jō) — is a Japanese castle in Sendai, Miyagi Prefecture. Construction began in 1601, in year 6 of the Keichō era (慶長, けいちょう), during the Azuchi–Momoyama period. The castle sits at coordinates 38.2524780, 140.8561560, in what is now Aoba-ku, one of Sendai's wards.

It is also known as Aoba Castle (青葉城, あおばじょう, Aoba-jō), after the hill on which it stands, and as Gojō-rō (五城楼, ごじょうろう). For the whole of the Edo period it was the seat of the Date clan, the daimyō (大名, だいみょう, feudal lords) of Sendai Domain. The castle is counted among the 100 Fine Castles of Japan, and its ruins were designated a National Historic Site in 2003.

History

Date Masamune (伊達政宗, だて まさむね) founded the castle in 1601, the year construction began. He was one of the most powerful lords of northern Japan, and the stronghold on Mount Aoba became the political and military centre of his territory.

The castle remained the headquarters of Sendai Domain throughout the Edo period, which ran from 1603 to 1868. The Date clan lived there continuously across those generations, governing their domain from the hilltop above the city.

The site's defensive logic lay in its position. Mount Aoba rises above the Hirose River, and the castle made use of the natural elevation and the river below. The main enclosure, the honmaru (本丸, ほんまる), occupied the summit.

What Stands There Today

The castle no longer survives as a set of buildings. What remains are the stone walls, earthworks and layout of the original fortifications, preserved as ruins.

Two features now occupy the site. The Miyagi Gokoku Shrine (宮城縣護國神社, みやぎけんごこくじんじゃ) stands within the castle grounds, and Aobayama Park (青葉山公園, あおばやまこうえん) covers the surrounding area. The ruins were designated a National Historic Site in 2003.

The Name in Japanese

The castle carries two everyday names, and both are worth knowing.

仙台城 — kana: せんだいじょう — romaji: Sendai-jō. This is the name that matches the modern city of Sendai.

• 仙 (せん, sen) — "hermit", "wizard", or "immortal". In Chinese and Japanese tradition this character refers to a mountain-dwelling sage. It is the first element of the place name Sendai.
• 台 (だい, dai) — "platform", "pedestal", or "terrace". Here it refers to a raised flat surface, fitting for a castle built on a plateau.
• 城 (じょう, jō) — "castle". This is the standard kanji for a Japanese castle, and it appears in castle names across the country, from Osaka Castle (大坂城) to Himeji Castle (姫路城). Note the sound change: the character is read shiro when it stands alone, but jō when attached to a place name, as here.

So 仙台城 breaks down as "Sendai" plus "castle" — the castle of Sendai.

青葉城 — kana: あおばじょう — romaji: Aoba-jō. This is the poetic name, taken from the hill.

• 青 (あお, ao) — "blue" or "green". Japanese traditionally uses one word for the range of colours English splits into blue and green, so this character covers both.
• 葉 (ば, ba) — "leaf". Alone it is read ha; in compounds it often voices to ba.
• 城 (じょう, jō) — "castle", as above.

青葉 therefore means "green leaves" or "fresh foliage", and 青葉城 is "Green Leaf Castle" — a name drawn from the wooded slope it commands.

The third name, 五城楼 (ごじょうろう, Gojō-rō), is a literary alternative. 楼 (ろう, rō) means a tower or a multi-storeyed building, so the whole reads as something like "the five-castle tower" — a flourish rather than a formal designation.

Visiting and Context

The castle grounds sit in Aoba-ku in central Sendai, on the hill of Mount Aoba, with the Hirose River below. The site is reached on foot or by city transport from the centre of Sendai, and the park and shrine are open to visitors.

For anyone studying Japanese, Sendai Castle is a useful landmark because its name teaches three things at once. It shows how 城 changes reading depending on whether it stands alone or attaches to a place name. It shows the voiced sound change in 葉 → ば. And it shows that a single Japanese colour word, 青, covers ground that English divides between blue and green — a difference that shapes how place names are read and understood.

The castle's association with Date Masamune also makes it a natural entry point into the history of the Date clan and Sendai Domain, and into the wider story of castle-building in Japan at the start of the seventeenth century.

Saihō-ji (西方寺) is a Buddhist temple in Aoba-ku, one of the wards of Sendai, the largest city in Miyagi Prefecture in northern Japan. It was founded in 1706, during the Edo period (1603–1868), and belongs to the Jōdo-shū (浄土宗) sect, the "Pure Land School" of Japanese Buddhism. The temple sits at coordinates 38.3650800, 140.6677800, in the hills on the western side of the city.

Its formal name is rarely used in daily life. Local people know the temple better as Jōgi Nyorai (定基如来) or simply Jōgi-san (定基さん), nicknames that have largely displaced the official name in ordinary conversation.

History

Saihō-ji was established in 1706, the third year of the Hōei era (宝永, 1704–1711). The Hōei years fell in the middle of the Edo period, a stretch of more than two and a half centuries of Tokugawa rule during which Japan was governed from Edo — modern Tokyo — by a hereditary line of shoguns. Sendai was then the castle town of the Date clan, the daimyō family that controlled the large northern domain of Sendai. A new temple founded in 1706 in the hills of Aoba-ku belonged to that world: a regional city under warrior administration, with Buddhist institutions serving the devotional and funeral needs of its population.

The temple was founded as a Jōdo-shū establishment and has kept that affiliation. Jōdo-shū traces back to Hōnen (法然, 1133–1212), the twelfth-century monk who taught that salvation in the Pure Land of Amida Buddha could be reached through the recitation of the nembutsu (念仏), the phrase Namu Amida Butsu. By the Edo period the school was one of the largest Buddhist bodies in Japan, with temples in nearly every town. Saihō-ji is one of the many provincial Jōdo-shū temples founded in that era, and it has remained in continuous use as a place of worship since its foundation.

What Stands There Today

The temple stands in Aoba-ku, the central ward of Sendai, in a district of wooded slopes and residential streets west of the city centre. It remains an active Jōdo-shū temple, not a museum piece: services are held, graves are maintained, and the grounds function as a neighbourhood temple for the surrounding community.

The name Jōgi Nyorai, by which the temple is commonly known, is the name that appears on local signs, bus stops and maps. Visitors looking for the temple by its formal name may find that residents of the area do not immediately recognise it; asking for Jōgi-san is the practical approach.

The Name in Japanese

The temple's name is written 西方寺. It is read in kana as さいほうじ, and in romaji as Saihōji. The long ō in the second syllable is a long vowel, so the word has four morae: sa-i-hō-ji.

Broken down character by character:

• 西 — read here as さい (sai). The character means "west". On its own it is also read nishi, and it is the same character used in 関西 (Kansai), the "west of the barrier" region, and in 西洋 (seiyō), "the West" in the sense of Europe and America.
• 方 — read here as ほう (hō). The character means "direction" or "side". Combined with 西, it forms 西方 (saihō), "the west" or "the western direction". In Jōdo-shū and related Pure Land traditions, 西方 carries a specific meaning: the Western Paradise, the Pure Land of Amida Buddha, which is said to lie in the west. The temple's name is therefore a religious statement, not merely a compass direction.
• 寺 — read here as じ (ji). The character means "temple". It is the standard suffix for a Buddhist temple's name in Japanese, and appears in thousands of temple names across the country.

So 西方寺 means, roughly, "the Temple of the Western Direction" — a name that points directly at the Pure Land tradition the temple belongs to. The reading ji for 寺 is the ordinary one in temple names; the same character is read tera when it stands alone as a common noun.

The popular name Jōgi Nyorai is written 定基如来. Nyorai (如来) is the Japanese term for a Buddha as a fully enlightened being, the title applied to Amida in the Pure Land scriptures. Jōgi is the element that distinguishes this particular temple's object of devotion.

Visiting and Context

Saihō-ji is a working temple in a residential part of Sendai, and visits are made as one would visit any neighbourhood temple: quietly, and with attention to the fact that funerals and memorial services may be in progress. The grounds are in Aoba-ku, the ward that also contains Sendai's central business district and the site of Sendai Castle, the Date clan's former stronghold.

For students of Japanese, the temple's name is a compact lesson in how Buddhist vocabulary works in the language. 寺 (ji) is one of the first kanji a learner meets in place names, and 西 (sai, nishi) is among the earliest directional words taught. Seeing them combined in 西方寺 — and knowing that 西方 means the Western Pure Land rather than simply "west" — shows how a temple name can carry doctrine inside what looks like an ordinary place name. The gap between the formal 西方寺 and the everyday Jōgi-san is equally instructive: Japanese religious sites often live under two names at once, one for registers and one for the street.