Title Preserving a National Treasure Becoming a National Treasure

  • Nagano
Topic(s):
Castles/Palaces
Medium/Media of Use:
$SETTINGS_DB.mediaClassificationMap.get($item)
Text Length:
751+ Words
FY Prepared:
2022
Associated Tourism Board:
Matsumoto City

国宝の保存


国宝への道


松本城が国の史跡に指定されたのは1930年。その6年後、国宝に指定された。


1929年に制定された「国宝保存法」は、国宝に指定されるための基準や手続きなどを定めた法律である。この法律は、第二次世界大戦後の日本占領に伴う法体系の再編成の中で、置き換えられた。そのため、混同を避けるため、旧法指定されたものを「旧国宝」と呼ぶこともある。


1936年の松本城の指定は比較的遅かった。松本城が国の史跡に指定された1930年には、16城が国宝に指定されていた。名古屋城、姫路城、岡山城、広島城、福山城、仙台城、熊本城、首里城、丸岡城、高知城、宇和島城、犬山城、金沢城、和歌山城、松江城、そして松山城が挙げられる。


残念ながら、第二次世界大戦中の空襲で多くの城が焼失してしまったが、松本城はそのような運命を免れることができた。1950年に「文化財保護法」が制定され、松本城はそのわずか2年後に国宝に再指定された。松本城は、姫路城に次いで2番目の国宝指定となった。指定された当時、松本城は歴史上最も大規模な修理が行われていた。


松本城の保存


(1) 江戸時代(1603~1867)の増築と修理


増築

1594年、石川氏によって大天守、乾小天守、渡櫓が築かれ、城を囲む三重の堀が整備された。その40年後、松平直政(1601-1666)の時代に、辰巳附櫓と月見櫓が追加された。


その結果、連結式と呼ばれる大天守と乾小天守が渡櫓でつながる形式に、辰巳附櫓と月見櫓が付く複合式とよばれる形式が加わって、連結複合式という現在の天守の配置が完成した。この組み合わせは、現存する城郭の中でも異彩を放っている。直政は黒門の北側にさらに櫓を追加し、二の丸には米を貯蔵する大きな倉庫を2棟建てたが、これらの建物は現存していない。


修理

江戸時代、城の修理や修繕はかなり頻繁に行われたようだが、その詳細な記録はほとんど残っていない。例えば、江戸時代中期以降、戸田家が統治していた松本では、1733、1758、1779、1781、1782、1802、1817、1826、1832、1842年に修理が行われたことが分かっている。しかし、これらの修理の具体的な内容は不明である。


(2)明治時代(1868年~1912年)の修理

1868年、明治維新を経て、日本は石造建築をはじめとする西洋文化が多く取り入れられるようになった。その結果、松本城のような木造の城は、戦国乱世の遺物とみなされるようになった。多くの城が取り壊され、公共施設等に転用された。松本城は救われたものの、瓦が割れ、壁が崩れ、黒漆塗りの下見板張りが色あせるなど、急速に老朽化が進んだ。


松本城は、中学校長の小林有也(1855-1914)がいなければ、最終的には崩壊していたかもしれない。小林は天守の現状を目の当たりにし、松本天守保存会を設立したこの会は、松本城の修理に必要な資金を集め、政府から修理許可を受けた。


修理は1903年に始まり、日露戦争(1904~1905年)を挟んで、1913年に完成した。この工事に携わった棟梁の一人、佐々木喜重は、後に長野県のユニークな凝洋風校舎である山辺学校を設計することになる。


詳しい記録は残っていないが、内部の石段の積み直し、筋違の追加、壁の漆喰の塗り直し、金物による骨組みの補強、城の傾きの修正などが行われたと思われる。その結果、城の老朽化は避けられたが、新しい窓が追加され、外観は大きく変化した。この修理は、地元住民の支援によって実現したもので、修理費の約8割は住民の寄付によってまかなわれた。


(2) 昭和時代(1926-1989)の修理

戦後、1946年の秋、連合国軍最高司令官総司令部(SCAP)民間情報局美術顧問が長野県を訪れた。彼の名はチャールズ・F・ギャラガー(Charles F. Gallagher)。松本城の現状を見たギャラガーは、一刻も早く修理を行うよう勧告した。


この勧告を受け、東京国立博物館保存修理課長の大岡實(1900-1987)と東京大学教授の藤島亥治郎(1899-2002)が事前調査を行った。1948年、「松本城址風致地区保存会」が結成され、資金調達や文部省への陳情書の作成に協力した。その結果、1950年6月8日から大規模な修理が始まった。


これは、前例のない大規模なもので、松本城を完全に解体しての工事であった。その目的は、江戸時代の城郭の姿を取り戻すことであった。しかし、この改修工事で基礎部分を徹底的に調査し、地下の木柱を鉄筋コンクリートに変えて耐久性を向上させることが決定された。



1950
June 8
起工式
August
解体開始
August 15
松本市博物館から松本城保存建築事務所に管理が移管される
1952
June 11
大工による再建の始まりを告げる「釿始式」
1953
October 3
上棟式
1955
October 1
竣工式
October 8
大天守閣6階に城の守護神である二十六夜神を再祀
October 15
城の継続管理を松本市博物館へ引き継ぐ

この事業の過程で、松本市は姫路城と松江城のある姫路市と松江市に働きかけ、1951年9月18日に「全国城郭保存協議会」の設立準備会を開いた。その後、11月には他の城郭都市も加わり、姫路で第1回目の協議会が開催された。この組織はやがて解散したが、現在の日本城郭管理者協議会の基礎となった。

Preserving a National Treasure


Becoming a National Treasure

Matsumoto Castle was first designated a National Historic Site in 1930. Six years later, it was designated a National Treasure.


The National Treasure Preservation Act of 1929 established the criteria for qualification and the process of designation. This law was replaced during the restructuring of the legal system that followed World War II. As a result, any site designated under the previous framework is sometimes referred to as an “Old National Treasure” to prevent confusion.


Matsumoto Castle’s designation in 1936 was comparatively late. Sixteen castles had already been designated National Treasures in 1930, the year Matsumoto Castle was made a National Historic Site. The 16 castles that preceded Matsumoto Castle were Nagoya, Himeji, Okayama, Hiroshima, Fukuyama, Sendai, Kumamoto, Shuri, Maruoka, Kōchi, Uwajima, Inuyama, Kanazawa, Wakayama, Matsue, and Matsuyama Castles.


Sadly, many castles were destroyed by air raids during World War II, but Matsumoto Castle survived. A new “Cultural Properties Preservation Act” was established in 1950, and Matsumoto Castle was redesignated a National Treasure just two years later. Matsumoto was the second castle to receive this designation, after Himeji Castle. At the time of its designation, Matsumoto Castle was undergoing the most extensive repairs in its history.


Preserving Matsumoto Castle


(1) Expansion and Repairs in the Edo Period (1603–1867)


Expansion

The castle’s Great Keep, the Northwest Tower, and the Roofed Passage were built in 1594 under the rule of the Ishikawa family. At this same time, the Ishikawa family also fortified the three concentric baileys that surround the castle. The Southeast Wing and the Moon-Viewing Tower were added to the castle 40 years later, under Matsudaira Naomasa (1601–1666).


The resulting castle consists of the Great Keep and two joined towers. The Northwest Tower is joined via a connecting structure (a “linked keep”) and the Moon-Viewing Tower and Southwest Wing are joined directly (a “compound keep”). This combination of designs is unique among the castles that survive today. It is said that Naomasa may have added an additional tower to the north of the Kuromon Gate, and he also constructed two large storehouses for rice in the second bailey, but those structures are no longer standing.


Repairs

It seems that repairs and upkeep of the castle were carried out quite frequently during the Edo period, but few detailed records of these repairs exist. For example, it is known that when Matsumoto was governed by the Toda family from around the middle of the Edo period onward, repairs were conducted in 1733, 1758, 1779, 1781, 1782, 1802, 1817, 1826, 1832, and 1842. However, the specifics of these repairs are unknown.


(2) Repairs in the Meiji Era (1868–1912)

Following the Meiji Restoration in 1868, Japan began to adopt many aspects of Western culture, including stone architecture. As a result, wooden castles such as Matsumoto Castle came to be seen as outdated relics of a war-torn age. Many castles throughout the country were torn down to make room for civic infrastructure or other new construction. Although Matsumoto Castle was spared, it quickly fell into disrepair: roof tiles cracked, walls began to collapse, and the distinctive, black-lacquered weatherboard faded. The castle might have ultimately collapsed where it stood, if not for Kobayashi Unari (1855–1914), the principal of the local middle school. Witnessing the state of the castle, Kobayashi established the Matsumoto Castle Preservation Society. This organization raised funds and gained the necessary government approval to repair the castle.


Renovations began in 1903 and were completed in 1913, following a brief pause during the Russo–Japanese War (1904–1905). One of the master carpenters involved in the project, Sasaki Kijū, later went on to design the Yamabe School, a unique pseudo–Western style school building in Nagano Prefecture.


Detailed records of the castle repairs do not exist, but it is thought that workers restacked some of the interior stone stairs, added diagonal support beams and an additional layer of plaster to the walls, shored up the frame with metal supports, and corrected the tilt of the castle. As a result, the castle was saved from further dilapidation, although the addition of new windows meant that its appearance changed substantially. These repairs would not have been possible without the support of local residents, whose donations covered roughly 70 percent of the renovation costs.


明治修理の状況
Repairs in the Meiji era
明治修理後の天守
Matsumoto Castle after repairs in 1913

(2) Repairs in the Showa Era (1926–1989)

After the end of World War II, in the autumn of 1946, an advisor for the Arts and Monuments Division of the Civil Information and Education Section under the Supreme Commander for the Allied Powers (SCAP) visited Nagano Prefecture. His name was Charles F. Gallagher. Seeing the condition of Matsumoto Castle, Gallagher recommended that repairs be carried out as soon as possible.

Motivated by his recommendation, Ōoka Minoru (1900–1987), a director at the Tokyo National Museum, and Fujishima Gaijirō (1899–2002), a professor at the University of Tokyo, conducted preliminary surveys. In 1948, the Matsumoto Castle Scenic Landscape Preservation Society was formed, fundraising efforts were begun, and a petition to allow construction was submitted to the national government. As a result of their efforts, large-scale repairs began on June 8, 1950.

The project was unprecedented in its scope and involved the complete disassembly of Matsumoto Castle. The overall objective of the repairs was to restore the Edo-period appearance of the castle. However, the renovations also allowed the builders to conduct a thorough investigation of the foundation, and it was determined that the underground wooden posts should be replaced with reinforced concrete to improve the durability of the structure.

1950
June 8
Groundbreaking Ceremony
August
Deconstruction begins
August 15
Management of the project is transferred from the Matsumoto City Museum to the Matsumoto Castle Preservation and Construction Office
1952
June 11
Chōna-hajime (“first adze”) Ceremony, which marks the start of reconstruction
1953
October 3
Ridge-Raising Ceremony
1955
October 1
Completion Ceremony
October 8
enshrinement of Nijūroku-yashin, a guardian deity of the castle, on the sixth floor of the Great Keep
October 15
Continued management of the castle is transferred back to the Matsumoto City Museum

Partway through the project, the city government of Matsumoto reached out to staff at Himeji Castle and Matsue Castle and took the first steps toward establishing the National Castle Preservation Council. A provisional planning meeting was held on September 18, 1951. Later in November, other cities with castles joined the council, and its first full meeting was held in Himeji. While this organization was eventually dissolved, it served as the basis for the current Japanese Castle Management Council.

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