Mongaku's Forty-Five Article Oath: A National Treasure Born from Devotion

Deep within the mountainside temple of Jingo-ji in Kyoto's Takao district lies one of Japan's most remarkable historical documents. The "Mongaku Forty-Five Article Oath" (文覚四十五箇条起請文), designated a National Treasure, is a handscroll dating from 1185 that encapsulates the fervent vision of the warrior-monk Mongaku for the revival of one of Japan's most ancient and revered temples. Written in elegant calligraphy by the distinguished court noble Fujiwara no Tadachika and authenticated with the personal handprint and calligraphy of Emperor Go-Shirakawa, this document is a rare convergence of religious devotion, political authority, and artistic mastery.

What Is the Mongaku Forty-Five Article Oath?

The Mongaku Forty-Five Article Oath is a single handscroll (一巻) created on the 19th day of the first month of Genryaku 2 (1185), just months before the final destruction of the Taira clan at the Battle of Dan-no-ura. The document comprises forty-five articles of rules and regulations that Mongaku established for the monks and administrators of Jingo-ji Temple. These articles cover a wide range of topics, from the proper conduct of religious practices and monastic discipline to the practical management and governance of the temple's affairs.

The text was transcribed by Fujiwara no Tadachika (also known as Nakayama Tadachika), a high-ranking courtier who held the position of Inner Minister (Naidaijin) and was renowned for his refined calligraphy and deep knowledge of court ceremonies. At the end of the scroll, Emperor Go-Shirakawa himself added five lines in his own hand, and his personal handprint (御手印) was pressed at both the beginning and end of the document, signifying imperial endorsement of the oath's contents.

The Dramatic Story of Mongaku

To truly appreciate this National Treasure, one must understand the extraordinary life of its author, Mongaku. Born around 1139 as Endo Moritoo, he was originally a warrior in the service of Princess Josaimon'in. According to the epic "Tale of the Heike," a tragic love affair led to his decision to renounce the world and take Buddhist vows.

After years of rigorous ascetic training at sacred sites across Japan, Mongaku arrived at Jingo-ji in 1168 and was deeply moved by the ruined state of this once-great temple, which had been founded by Wake no Kiyomaro and later served as the base where Kukai (Kobo Daishi) established the foundations of Shingon Buddhism in Japan. Determined to restore the temple, Mongaku boldly approached Emperor Go-Shirakawa to demand donations, but his forceful manner caused offense and he was exiled to Izu Province.

In exile, Mongaku met Minamoto no Yoritomo, who was also banished to Izu. According to historical accounts, Mongaku encouraged Yoritomo to raise arms against the Taira clan. When Yoritomo eventually succeeded in establishing the Kamakura Shogunate, both he and Emperor Go-Shirakawa became powerful patrons of Mongaku's temple restoration efforts. The Forty-Five Article Oath was composed during this pivotal period, when the long-awaited revival of Jingo-ji was finally becoming reality.

Why Was This Document Designated a National Treasure?

The Mongaku Forty-Five Article Oath was designated a National Treasure on March 20, 1954. Its exceptional value derives from several remarkable qualities:

First, the document provides an invaluable firsthand account of medieval Japanese monastic governance. The forty-five articles offer rare insight into how a major Shingon Buddhist temple was organized and managed during the late Heian to early Kamakura transition period.

Second, the involvement of three historically significant figures—the warrior-monk Mongaku, the courtier Fujiwara no Tadachika, and Emperor Go-Shirakawa—makes this a uniquely layered historical artifact. The emperor's personal calligraphy and handprint at both ends of the scroll represent an extraordinary imperial endorsement that few documents of this era can claim.

Third, the calligraphy itself is of outstanding artistic quality. Fujiwara no Tadachika was celebrated for his mastery of court ceremonies and elegant hand, and his brushwork in this scroll exemplifies the refined aesthetic of late Heian aristocratic culture.

Finally, the document is precious as a testament to one of the most dramatic episodes in Japanese history—the restoration of Jingo-ji against the backdrop of the Genpei War and the birth of Japan's first military government.

Fujiwara no Tadachika: The Distinguished Scribe

Fujiwara no Tadachika (1131–1195), also known as Nakayama Tadachika, was a prominent courtier of the late Heian period. He was the third son of Fujiwara no Tadamune and belonged to the prestigious Hanazono-in branch of the Fujiwara clan. Rising to the rank of Inner Minister (Naidaijin) with the senior second court rank, he was widely respected as an authority on court protocol and ceremonial matters.

Tadachika served as an official of Emperor Go-Shirakawa's Retired Emperor's Office and was closely connected with the Taira clan's political circle. He is also known as the founder of the Nakayama family of court nobles and as the author of the diary "Sankaiki," an important historical record of the period. His role in transcribing the Forty-Five Article Oath reflects the close ties between the imperial court and the restoration of Jingo-ji.

Highlights and What to Look For

When viewing this National Treasure, several elements deserve special attention. The opening and closing of the scroll bear the clearly visible handprints of Emperor Go-Shirakawa, a rare example of imperial authentication through physical impression. The five lines of calligraphy added by the emperor at the end of the scroll are written in a style distinct from Tadachika's hand, allowing visitors to compare the writing styles of a court noble and an emperor side by side.

The main body of the text showcases Tadachika's masterful brushwork—fluid yet precise characters that reflect decades of aristocratic training. The scroll's physical condition, remarkably well-preserved after more than 800 years, speaks to the care that generations of Jingo-ji monks have devoted to protecting their temple's treasures.

When and Where to See This National Treasure

The Mongaku Forty-Five Article Oath is normally deposited at the Kyoto National Museum for preservation. However, each year during Golden Week (typically May 1–5), Jingo-ji holds its annual "Mushi-barai" (Insect Airing) event, during which approximately 70 temple treasures, including this National Treasure, are displayed in the temple's Shoin (study hall). This is one of the few opportunities to view the document in its original temple setting.

During the Mushi-barai event, visitors can also see other National Treasures from Jingo-ji's remarkable collection, including the famous portrait traditionally attributed to Minamoto no Yoritomo, the portrait of Taira no Shigemori, the Kanjo Rekimyo written by Kukai, and many other priceless works. The Shoin's stone garden "Kanjo no Niwa" (Garden of Consecration) is also opened to the public during this period.

About Jingo-ji Temple

Jingo-ji Temple (formally Jingo-kokuso-shingon-ji) stands on the slopes of Mount Takao in northwest Kyoto, surrounded by a magnificent forest of maple trees that makes it one of the city's most celebrated autumn foliage destinations. Founded by Wake no Kiyomaro in the late 8th century, the temple became a center of Shingon Buddhism when Kukai resided here for fourteen years, laying the groundwork for his esoteric Buddhist teachings before moving to Mount Koya and Toji Temple.

The temple's approach from the Takao bus stop involves a scenic 20-minute walk along stone steps descending to the Kiyotaki River, crossing the Takao Bridge, and ascending approximately 400 stone steps through a tunnel of maple trees. Along the way, traditional tea houses offer refreshments and stunning views of the Kinunkei Gorge.

In addition to its extraordinary collection of National Treasures, Jingo-ji is famous as the birthplace of "kawarake-nage," the tradition of throwing unglazed earthenware discs from a high vantage point into the valley below as a prayer for good fortune and the warding off of evil.

Surrounding Area

The Takao area is known as the "Sanbi" (Three Tails) district, comprising three historic mountain temples: Jingo-ji on Mount Takao, Saimyo-ji on Mount Makino, and Kozan-ji (a UNESCO World Heritage Site) on Mount Togano. All three temples can be visited on foot in a single day, making for a deeply rewarding pilgrimage through one of Kyoto's most beautiful natural landscapes.

Kozan-ji Temple is particularly famous for its "Choju-giga" (Scrolls of Frolicking Animals), often called Japan's first manga. Saimyo-ji, nestled between the other two temples, offers a tranquil atmosphere and lovely garden. The Kiyotaki River area also features traditional riverside dining (kawadoko) during summer months, where guests enjoy meals on platforms built over the cool mountain stream.