An Emperor's Hand on a Monk's Certificate
A single handscroll, dated the fourteenth day of the fourth month of 823, records that a monk named Kōjō had formally received the Mahayana bodhisattva precepts at Ichijō Shikan-in on Mount Hiei. What makes the scroll extraordinary is the identity of the person who wrote it out: Emperor Saga, the reigning sovereign, put brush to paper himself. The document is known today as the Kōjō Kaichō, the Ordination Certificate of Kōjō, and it belongs to Enryaku-ji, the head temple of the Tendai school above Lake Biwa in Shiga Prefecture.
The scroll is ink on hemp paper, roughly 36.9 centimeters high and 148.2 centimeters long. A kaichō was a monk's official credential, the written proof that he had received the precepts in a recognized ceremony and could be counted as a full member of the clergy. Most such certificates were routine administrative paper. This one was written by an emperor, and that single fact lifted it out of the ordinary the moment the ink dried.
Japan designated the certificate a National Treasure on 20 March 1954, the highest legal protection the country gives to a cultural object. It is classified among ancient documents (komonjo) and counted as a single scroll.
The Struggle Behind the Scroll
To understand why an emperor would write a monk's certificate by hand, it helps to know what was happening on Mount Hiei in 823. The monastery's founder, Saichō, known posthumously as Dengyō Daishi, had spent his last years fighting for a single goal: the right to ordain his own monks on the mountain using the Mahayana bodhisattva precepts, rather than sending them down to the established platforms at Tōdai-ji in Nara and two other state-sanctioned sites. Those older platforms used the full monastic code inherited from continental Buddhism, and the powerful Nara temples resisted any rival system.
Saichō did not live to see the matter settled. He died in 822, and imperial approval for the independent ordination platform arrived only seven days later. The task of carrying his teacher's plan forward fell to his disciple Kōjō, who lived from 779 to 858 and had lobbied tirelessly at court. On the fourteenth day of the fourth month of 823, fourteen monks received the bodhisattva precepts at Ichijō Shikan-in, the first ordination held under the new system. Kōjō was among them, and he later described the whole sequence of events in his own writing, the Denjutsu Isshin Kaimon.
Emperor Saga issued this certificate to mark Kōjō's part in establishing the platform. It was, in effect, both a credential and a personal acknowledgment from the throne. There is a quiet historical irony in the date: two days after the fourteenth, the emperor abdicated in favor of his younger brother, who reigned as Emperor Junna. The scroll thus belongs to the very last days of Saga's reign.
Why the Calligraphy Matters
Emperor Saga is remembered as one of the Sanpitsu, the Three Brushes, a trio of early Heian calligraphers that also included the monk Kūkai and the courtier Tachibana no Hayanari. The three set the standard for brushwork in their era. Saga's name appears on a number of works in later collections, but scholars regard this certificate as the only piece that can be confidently accepted as his genuine hand. That alone would justify its rank.
The writing itself rewards close looking. Saga did not hold to a single script. He moved among regular, semi-cursive, and fully cursive forms within the same document, a mixed manner that Japanese tradition calls hatai. Large characters sit beside small ones, and the rhythm shifts as the eye travels down the columns. Critics have long detected two influences working together in the brushwork: the taut, dynamic structure associated with the Tang master Ouyang Xun, and the softer, more decorative sensibility of Kūkai, with whom Saga exchanged calligraphy and Chinese models. The strokes tend to begin lightly and thicken toward their ends, giving the lines a tapered weight.
Seen in person, the scroll is less a relic than a record of a hand in motion. The pressure of the brush, the speed of certain strokes, and the small adjustments of an experienced writer are all still visible in the ink.
Seeing It on Mount Hiei
The certificate is kept at the Kokuhō-den, the treasure museum in the Tōtō (Eastern Pagoda) precinct of Enryaku-ji, close to the Enryakuji Bus Center. The museum holds a rotating selection of the temple's paintings, sculptures, and documents, including other National Treasures such as a ninth-century text in Saichō's own hand. Because the certificate is fragile and light-sensitive, it is not on permanent view. It tends to appear during special exhibitions devoted to Saichō and Tendai Buddhism or to the history of Japanese calligraphy, sometimes at Enryaku-ji and sometimes on loan to major museums. Anyone hoping to see the original should check the current exhibition schedule before traveling.
Enryaku-ji itself is worth the climb regardless. Founded by Saichō in 788, it spreads across the whole of Mount Hiei in three areas, the Tōtō, Saitō, and Yokawa, and was registered as a UNESCO World Heritage Site in 1994 as part of the Historic Monuments of Ancient Kyoto. The central hall, Konpon Chūdō, is a National Treasure in its own right, though it has been undergoing a long restoration. The mountain straddles the border of Shiga and Kyoto, with Lake Biwa on one side and the old capital on the other, and the cool forested ridges make it a welcome retreat in summer.
You can reach the summit by cable car and ropeway from the Kyoto side, by the Sakamoto Cable from the Shiga side, or by road. A shuttle bus links the three precincts on the mountain, though it pauses in winter, so check seasonal timetables when planning a visit.
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Q&A
- What is a kaichō, and why does this one matter so much?
- A kaichō is an ordination certificate, the formal proof that a monk had received the precepts and was recognized as a member of the clergy. This particular certificate matters because Emperor Saga wrote it himself, and it is regarded as the only securely authenticated example of his calligraphy to survive.
- Can I see the original at Enryaku-ji at any time?
- Not at any time. The scroll is housed in the Kokuhō-den museum but is shown only on a rotating basis, usually during special exhibitions, because of its age and sensitivity to light. Check the temple's current exhibition information before visiting if seeing the original is your goal.
- Who was Kōjō?
- Kōjō (779 to 858) was a leading disciple of Saichō, the founder of the Tendai school. After his teacher's death he worked to win imperial approval for an independent ordination platform on Mount Hiei, and he was among the first monks ordained there in 823.
- What are the Three Brushes?
- The Sanpitsu, or Three Brushes, were three celebrated calligraphers of the early Heian period: Emperor Saga, the monk Kūkai, and the courtier Tachibana no Hayanari. They were considered the finest brush hands of their generation.
- How do I get to the Kokuhō-den?
- The museum sits in the Tōtō precinct near the Enryakuji Bus Center. You can reach the mountain by cable car and ropeway from Kyoto, by the Sakamoto Cable from the Shiga side, or by road, then use the shuttle bus that connects the precincts during the operating season.
Basic Information
| Name | Saga Tennō Shinkan Kōjō Kaichō (Ordination Certificate of Kōjō, in the hand of Emperor Saga) |
|---|---|
| Date | Kōnin 14 (823), fourteenth day of the fourth month, Heian period |
| Calligrapher | Emperor Saga |
| Classification | National Treasure (ancient document); designated 20 March 1954 |
| Quantity | One scroll |
| Dimensions | Approx. 36.9 cm high by 148.2 cm long, ink on hemp paper |
| Owner | Enryaku-ji |
| Location | Mount Hiei, Shiga Prefecture (kept at the Kokuhō-den, Tōtō precinct) |
| Viewing | Displayed periodically; not on permanent view |
References
- National Database of Designated Cultural Properties, Agency for Cultural Affairs
- https://kunishitei.bunka.go.jp/bsys/maindetails/201/800
- Kokuhō-den, Hieizan Enryaku-ji official site
- https://www.hieizan.or.jp/keidai/kokuhoden
- Hieizan Enryaku-ji, Shiga Prefecture official tourism site
- https://www.biwako-visitors.jp/spot/detail/58/
- Kōjō Kaichō, Kotobank (Heibonsha World Encyclopedia)
- https://kotobank.jp/word/光定戒牒-1314009
Last verified: 2026.06.08