learn/[id]

ERA

12 min read

称

ERA

Shomyoji and Kanazawa Bunko: Hojo Sanetoki's Legacy of Learning and Faith

Founded in 1258 by Hojo Sanetoki, this Shingon Ritsu temple features Yokohama's only national treasure, a restored Pure Land garden, and the adjacent Kanazawa Bunko — the finest concentration of Kamakura-period learning and faith in Yokohama.

Contents

MOKUJI

Hojo Sanetoki: The Scholar-Warrior of Kanazawa

›

Three Generations of Construction

›

Architecture and Faith: From the Niomon to Maitreya

›

Ajigaike and the Theology of the Pure Land Garden

›

Visitor Guide and Kanazawa Area Circuit

›

Frequently Asked Questions

›

Shomyoji's Ajigaike Pond and Pure Land garden, with the vermillion arched bridge reflected in still water

Wikimedia Commons / Public Domain

Shomyoji temple in Kanazawa, Yokohama is the finest surviving monument to Kamakura-period learning and faith. Founded in 1258 by Hojo Sanetoki — a senior Kamakura official who was also medieval Japan’s most remarkable book collector — it holds Yokohama’s only national treasure building, a restored Pure Land garden, and the adjacent Kanazawa Bunko library.

Hojo Sanetoki: The Scholar-Warrior of Kanazawa

The Move to Kanazawa and the Founding of Shomyoji

In 1262, Sanetoki relocated from Kamakura to Kanazawa in the Mutsuura estate. He had already built a private Buddhist hall on the site in 1258; in 1267 he invited the monk Shinkai — a direct disciple of the reformer Eison of Saidaiji — to serve as founding abbot, formally establishing the temple in the Shingon Ritsu tradition. That Sanetoki sought out a leading scholar-monk from the forefront of 13th-century religious reform, rather than simply building a clan temple, reveals the quality of his ambition.

The Birth of Kanazawa Bunko

While serving as rensho (regent-associate) of the Kamakura shogunate, Sanetoki amassed roughly 20,000 volumes of Chinese classics, Buddhist sutras, and Japanese literature — unprecedented for a warrior. This private library became the Kanazawa Bunko, medieval Japan’s greatest intellectual repository. After Sanetoki’s death in 1276 at age 53, his son Aketoki and grandson Sadaaki continued expanding the collection. Today the Kanazawa Prefectural Kanazawa Bunko Museum stands adjacent to the temple, carrying on its legacy.

Kanazawa Bunko Museum, the prefectural museum adjacent to Shomyoji, successor to Japan's oldest samurai library

Wikimedia Commons / CC0 1.0 / photo by Aspere

Three Generations of Construction

The Pure Land Garden Completed Under Sadaaki

After Sanetoki’s death, temple construction continued under the second and third generations. Sadaaki completed the Pure Land garden in the late 13th to early 14th century: a vermillion arched bridge and flat bridge over Ajigaike Pond, re-creating paradise on earth. The pond’s name — Ajigaike (“A-syllable pond”) — derives from the Shingon meditative practice of ajikan, contemplation of the Sanskrit letter A as the root of the universe, blending Pure Land and esoteric Buddhist thought into a unique spatial experience. In the stillness here, the prayers of those who came before seem still to fill the air.

The 1323 Shomyoji Emap: A National Treasure

The Shomyoji Emap (1323), designated a national treasure, depicts the temple’s full medieval layout in extraordinary detail — main hall, lecture hall, sutra repository, bridges, and hillside tombs. This document formed the primary basis for modern restoration work; the garden visitors see today faithfully reconstructs the landscape it shows from 700 years ago.

Shomyoji Emap (1323, national treasure) — a precise record of the medieval precinct layout and the primary basis for modern restoration

Wikimedia Commons / Public Domain

Architecture and Faith: From the Niomon to Maitreya

The Niomon Gate: Yokohama’s Only National Treasure Building

The Niomon gate is the only national treasure building in Yokohama. Its hip-roofed, cypress-bark-tiled structure preserves Kamakura-era carpentry techniques in superb condition. Guardian deity statues (kongōrikishi) — open-mouthed agyō and closed-mouthed ungyō — flank the entrance. Passing through and down the stone path, visitors arrive at Ajigaike Pond, where the vermillion arched bridge is reflected in still water — a sight that stops nearly every visitor in their tracks.

Maitreya and Shingon Ritsu: The Temple’s Religious Identity

The principal image is Maitreya Bodhisattva (Important Cultural Property), the buddha who will appear 5.67 billion years after Shakyamuni’s death to save all remaining beings. The sect — Shingon Ritsu (head temple: Saidaiji, Nara) — descends from Eison’s 13th-century movement to restore monastic precepts. Eison and his disciple Ninshō were notable also for practical social work: distributing medicine and building bridges for the poor. Shomyoji continues this tradition as a special head temple (bekaku honzan) in that lineage.

Painted board depicting Miroku Raigo (Kamakura period, Shomyoji collection) — Maitreya descending to save all beings, a masterwork of Kamakura-period Buddhist painting

Wikimedia Commons / Public Domain

Ajigaike and the Theology of the Pure Land Garden

The Arched Bridge as a Passage from This World to the Next

The arched bridge (harikyo) and flat bridge over Ajigaike embody the garden’s theological purpose: crossing the arched bridge — climbing toward the sky and descending again — enacts in the body the journey from this world to the Western Pure Land. The main hall on the opposite shore represents paradise; the two bridges are the path there.

Restored based on the 1323 emap, the garden is free to enter. The entire precinct is a National Historic Site. Admission is free year-round.

Four Seasons and the Hojo Family Tombs on the Hillside

Spring (late March–early April) brings cherry blossoms encircling Ajigaike, their white and pink petals reflected beside the vermillion bridge. Mid to late November is peak autumn foliage for ginkgo and maple. On the hillside behind the main precincts lie the tombs of Sanetoki, Aketoki, and Sadaaki — a quiet lookout offering a full view over the garden, a fitting place to reflect on the Hojo clan’s faith and learning.

Shomyoji's Pure Land garden with bridges over Ajigaike Pond — the restored arched and flat bridges link this world to paradise in the Kamakura-period landscape

Wikimedia Commons / CC BY-SA 3.0 / photo by Gleam

Visitor Guide and Kanazawa Area Circuit

Access and Admission

Item

Detail

Access

12-min walk from Keikyu Kanazawa-bunko Station (East Exit)

Temple precinct

Open year-round, free admission

Kanazawa Bunko Museum (adjacent)

9:00–16:30, closed Mon, ¥250

From Yokohama Station

approx. 20 min by Keikyu Line

Parking

Available (paid)

The garden and Niomon gate are accessible at any time. Check the official site in advance if you wish to view treasures in the treasure hall. The museum and temple together make an ideal half-day outing.

Half-Day Circuit: Kanazawa Bunko to Kanazawa Hakkei

Shomyoji (12-min walk from station) — Niomon → garden → hillside tombs, ~60 min

Daihoin (adjacent Shingon temple) — ~10 min

Anryuji (Kanazawa Hakkei) (Nichiren temple with 800-year lineage) — 15-min walk

Seto Shrine (Kamakura-period shrine near Kanazawa Hakkei Station)

This route traces the Kanazawa Hojo clan’s Buddhist cultural sphere in a single afternoon.

Frequently Asked Questions

What sect does Shomyoji belong to?

Shingon Ritsu (head temple: Saidaiji in Nara). Founded on the precept-revival movement of Eison in the 13th century, the sect combines rigorous monastic discipline with active social welfare. Shomyoji is a special head temple (bekaku honzan) in this tradition, established when Shinkai, a disciple of Eison’s lineage, was invited as founding abbot in 1267.

What is the relationship between Kanazawa Bunko and Shomyoji?

Kanazawa Bunko originated as a private library established by Shomyoji’s founder Hojo Sanetoki on his estate adjacent to the temple. After holding roughly 20,000 volumes, it passed to his heirs and eventually became the Kanazawa Prefectural Kanazawa Bunko Museum, which still operates next to the temple today, researching and displaying its medieval holdings.

Why is the Niomon gate Yokohama’s only national treasure?

The gate is designated because it preserves Kamakura-period wooden construction techniques in excellent condition — hip-roof style, cypress-bark tiling — and represents one of the finest surviving examples of 13th–14th-century warrior-clan temple architecture. It is the sole national treasure building remaining in Yokohama.

Last updated: May 22, 2026

── END ──

Toku editorial team — samurai history. Insists on primary sources and castle-layout diagrams, walking battlefields from Yoritomo's Izu exile sites to the late-Edo battlegrounds.

›

This article was

♡ Helpful

⤴

詣