Hizen Nagoya Castle: Building a Court for a War Overseas

At Hori Hideharu's camp outside Hizen Nagoya Castle, excavation identified the remains of a palace and a Noh stage. The second finding adds something unexpected to the word “camp”: a place for formal dramatic performance, with its music, movement and audience. This was a residence prepared for more than sheltering troops before embarkation.^[1]

Hori's compound belonged to the settlement gathered around Toyotomi Hideyoshi's headquarters for the invasions of Korea. Building began in 1591; the wars lasted from 1592 to 1598.^[2][16] Around the principal castle, lords from across Japan established separate compounds. Within this concentrated landscape, people could be summoned, entertained, instructed and sent onward.

Why did an overseas invasion require so much of a domestic court? The ruins offer part of an answer, but letters and records of people crossing the sea supply the rest. Nagoya was where a military assembly became a place of residence and reception. It was also where events in Korea arrived as diplomatic problems, captives and claims of victory.

The castle occupied a coastal position in Hizen, in northwestern Kyushu. Here Hideyoshi established a headquarters from which to launch armies against Korea. This was the Nagoya of the invasion, not the later Tokugawa castle in the central Japanese city of the same name. The distinction matters geographically: its sea-facing setting put the new headquarters near the routes toward the Korean peninsula.^[2]

The main castle covered about seventeen hectares. Construction responsibilities were divided among the daimyo, the territorial lords serving Hideyoshi. Saga's cultural-property account describes an initial building effort of only a few months. The scale was achieved by imposing separate building obligations, rather than by allowing a small local residence to grow gradually into a regional centre.^[2]

Speed did not freeze the layout. In the main enclosure, or honmaru, archaeologists found a wall that had been buried when the enclosure was enlarged. Building continued to reshape a site that was already being made useful. The earlier masonry survived because expansion covered it, preserving one stage of construction inside another.^[3]

That material sequence gives “temporary” a more precise meaning. Nagoya's role as a great headquarters was short-lived, but its builders committed themselves to stone walls, palaces and alterations. A building need not be flimsy to serve a temporary concentration of people. What made the settlement temporary was the eventual departure of the activities and obligations that had brought them together.

Hideyoshi himself stayed for a little over a year during the first invasion; he did not spend the whole war here. While he was present, the headquarters had to support both the dispatch of forces and the routines of a ruler's residence. The castle's layered platforms supplied the central setting, while the camps accommodated the separate households and retinues assembled around it.^[3]

More than a hundred camp sites have been identified around the castle. Their remains include enclosing walls, ditches, gates and buildings. The landscape was not one enormous shared barracks. It preserved distinct compounds belonging to different lords, each occupying a position in relation to the headquarters.^[4]

Two examples explain different jobs within that arrangement. Kinoshita Nobutoshi's camp occupied a location guarding the main approach. At Tokugawa Ieyasu's compound, investigators found stonework and a ditch. Hori's palace and stage, meanwhile, show provision for residential and ceremonial life. The camps did not all have to reproduce the main castle to form part of its operation.^[1]

Bringing lords together therefore meant bringing more than their names onto a roster. A lord needed somewhere for his household to function while his relationship with the ruler continued. A guarded entrance regulated access; a palace accommodated residence and reception; a stage made a particular kind of gathering possible. These different facilities explain why the camps belong in the history of the headquarters, rather than serving merely as markers of which famous men appeared nearby.

The concentration also attracted commerce. In a study of Nagoya, historian Kizaki Braddick draws on the diary of Ōwada Shigekiyo, a retainer serving the Satake house. His 1593 entries describe shopping in the settlement, including purchases of chopsticks and ceramics. The account gives the temporary town a scale below the great lords: people staying there needed ordinary goods as well as military supplies.^[5]

The palace in the principal enclosure occupied the centre of this assembly. Excavation recovered foundation stones and pebble paving; modern ground markings present its plan over protected remains.^[6] A gathering at the ruler's residence required people to leave their own compounds and approach his. That movement connected separate households without dissolving them into a single institution. Nagoya concentrated a political hierarchy in space while retaining the organizations through which men and resources had been summoned.

Hideyoshi had a particularly portable means of conducting reception. In 1592, he had his golden tea room brought to Nagoya. Already used elsewhere, it could be moved into a new setting rather than rebuilt as a permanent room of every palace. The castle museum identifies its use here with tea gatherings and the reception of foreign envoys.^[7]

The merchant Kamiya Sōtan's record describes a room of three tatami mats, with gold-covered architectural elements and red textiles. Such a confined setting organized an encounter very differently from the open spaces and large approaches outside. The room placed host, guests and the preparation of tea within a small, deliberately furnished interior.

Its mobility is the revealing feature. The ruler could change location while retaining a recognizable setting for hospitality. Transporting the room joined the new coastal headquarters to forms of reception already practiced at other centres. The assembly did not have to wait for Nagoya to acquire generations of residential tradition before it could conduct such occasions.

Elsewhere in the castle, excavation disclosed another kind of tea space. At Yamazato-maru, the residential area below the main enclosures, investigators identified a small rustic tea-room site, with associated garden features. The museum's archaeological panel records postholes, paths and surrounding features rather than a surviving furnished hut.^[8]

The contrast is between settings, not between a peaceful place and a military one. Both belonged to the headquarters. Tea required preparation, implements and arrangements for attendance; Hori's stage similarly required a place where a performance could occur. These facilities show that residence at Nagoya included organized occasions beyond the issuing of marching orders.

In 1592, Japanese armies landed in Korea and advanced rapidly, taking Seoul and reaching Pyongyang. The Korean court sought help from Ming China. Korean resistance and Ming intervention checked that advance. Hideyoshi's campaign aimed beyond Korea toward Ming China, but the fighting first subjected the Joseon kingdom to invasion and occupation. The war involved its defense as well as the response of the Ming state to an attack on its ally.^[9]

Resistance had local actors and local objectives. Jinju National Museum identifies Gwon Eungsu with a volunteer force that recovered Yeongcheon Castle. Such forces sought to regain places within Korea, rather than simply to obstruct a Japanese campaign plan. Naval operations and fighting on land also challenged the invaders' movement and occupation.^[10]

Ming and Korean forces retook Pyongyang in 1593. Japanese armies subsequently withdrew from Seoul and concentrated farther south, while negotiations developed. These events changed the questions reaching the headquarters across the sea. A place established to launch an advancing army now had to deal with occupied positions, withdrawals and possible terms of settlement.^[9]

The distance was not just geographical. A lord summoned to a Japanese compound and an envoy arriving from the Ming side did not occupy equivalent positions. The first belonged to the domestic structure through which Hideyoshi had mobilized the expedition. The second represented a negotiating relationship formed by an ongoing war. Attendance at Nagoya could mean service in one case and an attempt to secure different terms in the other.

Nor did the opening of negotiations make the peninsula peaceful. Japanese forces retained positions in Korea, and fighting continued during the intervening years. The people negotiating were addressing the continuation or removal of an occupation, not merely choosing the language for a completed Japanese victory.^[11]

Nagoya's palaces and camps remained the domestic setting for these problems, but Korean and Ming action had helped produce them. A history confined to the speed of construction or the number of assembled lords would miss why the headquarters' business changed after it had been built.

One surviving letter brings that changed business into focus. In the fifth lunar month of 1593, Hideyoshi wrote from Nagoya to his wife O-ne. The castle museum preserves the letter and identifies it with the peace negotiations then under way. Alongside the negotiations, its account notes his orders for Japanese castle construction in Korea.^[12]

In an English translation of the relevant passage, Hideyoshi says that representatives from the Ming empire have arrived and that he has given them his conditions. He makes acceptance conditional: agreement to all his terms would permit a settlement and his return. In the same passage, however, he reports that he has ordered further work in Korea.^[13]

The juxtaposition is more informative than a simple division between wartime and peacetime. Negotiation and military construction were proceeding together. While terms were being discussed at the headquarters, orders continued to concern positions held across the sea. An audience with envoys did not suspend the practical business of occupation.

The letter also shows how events were being represented within the ruler's household. Hideyoshi describes the visitors in the language of an apology to him. That was his characterization, not evidence that the Ming government had conceded every demand or that the Korean court accepted the proposed outcome. His own conditional wording leaves the agreement unfinished.

Read beside the Korean and Ming counteroffensive, the letter reveals two different relationships to the same place. Nagoya could be a setting in which Hideyoshi presented terms and anticipated his return. For the people coming to negotiate, the journey addressed a war that had not yielded the results his armies initially sought. The presence of envoys made the castle a diplomatic venue; it did not give the host control over what their arrival meant to every participant.

Diplomats were not the only people carried across the sea. Braddick's research cites letters by Hiratsuka Takitoshi, another Satake retainer, reporting the regular arrival at Nagoya of enslaved Korean men and women.^[14] Their presence adds a different kind of movement to the castle town's history. They had not assembled to perform service as daimyo or come to negotiate a settlement.

That testimony locates forced displacement within the headquarters' own settlement. A description of the population as soldiers, merchants and attendants would leave out people brought there through capture. The account does not provide their individual histories, but their status changes the meaning of the crowd: residence near the castle could follow compulsion as well as employment or political obligation.

A later campaign history also places human remains at Nagoya. Historian Rebekah Clements discusses a seventeenth-century account in which heads taken after fighting at Jinju were sent to Hideyoshi for inspection at the headquarters, then forwarded to Kyoto.^[15] The account describes a procedure by which violence overseas was presented to the ruler in Japan. Its later date needs to remain attached to the claim; it is not a surviving eyewitness report from the inspection itself.

The castle museum's wider war collection includes a hana uketorijō, a receipt for noses taken during the invasion. Such records belong to the accounting of violence, alongside objects that document residence and display.^[16] They cannot all be assigned to the same arrival or room at Nagoya. They do establish why the war's documentary remains must be read with the palace foundations, rather than kept outside the castle's history.

The regional consequences also lasted beyond the temporary assembly. The museum records the life of Hong Ho-yeon, taken from Korea as a child during the invasion and subsequently employed by the Nabeshima house in Saga. His route through Nagoya is not established by that catalogue, but his later life belongs to the displacement the expedition produced. It cannot be explained as a freely chosen cultural visit simply because written work and service followed captivity.^[16]

Hideyoshi left Nagoya in 1593. The headquarters' most conspicuous resident had departed, but the war continued. The prolonged negotiations did not produce a lasting settlement, and a renewed Japanese invasion followed in 1597. Withdrawal came in 1598, after Hideyoshi's death and further fighting involving Korean and Ming forces.^[17]

These dates separate three endings that are easily compressed into one: the end of Hideyoshi's residence, the end of the war, and the dismantling of the castle. His departure did not immediately remove Japan's forces from Korea. Their eventual withdrawal did not instantly produce every broken wall visible at Nagoya.

The museum identifies extensive deliberate damage to the masonry with the early Edo period. No original castle building survives. Some walls preserve earlier construction covered during expansion; others bear the effects of dismantling, subsequent decay and modern conservation.^[18] A buried wall inside an enlarged enclosure and a damaged outer face thus point in different directions—one toward continued investment, the other toward the undoing of the complex.

The camps help explain why the loss of function reached beyond the main castle. Their households had gathered in relation to the headquarters and the expedition. Once that concentration ended, a network of palaces, gates and residential compounds no longer served the assembly for which it had been made. The settlement's short life need not imply that its buildings had been intended as disposable from the beginning.

What remains is a place from which several kinds of action can still be reconstructed. The castle and camps show the accommodation of a political gathering. Tea-room records and archaeological traces show how residence included reception. The letter to O-ne places negotiation beside orders for continuing construction in Korea. Accounts of captives and the processing of human remains connect the headquarters with consequences carried back across the sea.

Nagoya brought a court close to an invasion without bringing the invaded country under the court's control. Korean resistance, Ming intervention and unfinished negotiations changed what the headquarters had to do. Its history lies in that encounter between a place assembled to direct a war and the war that repeatedly altered the purpose of the assembly.