The Heiji Conflict: How an Emperor’s Movement Changed Kyoto

The Hogen conflict occurred in 1156. Kiyomori and Yoshitomo both fought on Go-Shirakawa’s side. Family names alone did not determine their alignment: military participants joined opposing sides within a court struggle.

Three years later, in the Heiji era, they faced one another as opponents. Treating both conflicts as one uninterrupted Minamoto–Taira confrontation removes that change from view.

Earlier cooperation did not guarantee the same relationship in the next struggle. The starting point is therefore a court environment in which ties could be rearranged. Later outcomes cannot be used to make the earlier alliance disappear.

Shinzei was closely involved in government under Go-Shirakawa and had links with Kiyomori. Nobuyori opposed him and joined with Yoshitomo as events moved toward a political upheaval.

Those connections do not permit the reconstruction of everything Yoshitomo hoped or Kiyomori feared as private dialogue. Later narratives organise characters into memorable personalities, but their literary presentation is not direct access to the participants’ thoughts.

The account therefore follows actions: who joined whom, which residence was attacked and who moved afterward. This approach leaves moral judgments and psychological invention aside while preserving the relationships needed to understand the sequence.

Can the initial attack and the later fighting be treated as the execution of one plan established from the beginning? Literary scholar Haramizu Tamiki discusses the scarcity of evidence for reconstructing the conflict and the distance between events and the war tale.

Interpretations of Go-Shirakawa’s involvement and the relationship between the political upheaval and subsequent battle are not uniform. The article does not resolve those debates by declaring him either the architect of everything or entirely unaware.

Separating the circumstances of the initial action from those producing the eventual victors keeps later developments visible. The modern research-room illustration signals the work of interpretation; it is not a room in which twelfth-century participants met.

The Tokyo National Museum holds the Rokuhara imperial-visit scroll of the illustrated Tale of Heiji. Its four sections represent Nijo leaving in a court woman’s clothing and the events surrounding his reception at Kiyomori’s residence.

The work dates to the thirteenth-century Kamakura period. It was not painted on the day of the conflict. Its depiction therefore also belongs to the later telling and visual arrangement of the event.

Nagoya City Museum introduces a copy made in 1860. Original scroll and much later copy have distinct dates even when the compositions resemble one another. Neither the brightness of an image nor its detail makes it a direct view of the night in question.

The name Rokuhara may recall the Kamakura government’s Rokuhara Tandai. That later institution was not the same organisation as Kiyomori’s residence during the Heiji conflict.

Kyoto City’s urban history separates the area associated with Taira residences from the government office established after the Jokyu conflict. The place-name continued while its users and responsibilities changed.

Understanding Nijo’s destination begins with the twelfth-century base. Only afterward should the reader move to later institutional history. Otherwise a familiar later name can introduce offices that did not yet exist into the account of 1159.

The two warriors who had supported the same side in Hogen became enemies in Heiji. Yoshitomo was defeated and died. Kiyomori emerged with a stronger place in the capital, on the side that had received the emperor.

That sequence involved the retired emperor’s associates and developments around Nijo as well as armed forces. A fixed division between Minamoto and Taira removes much of the process through which the outcome became possible.

Yoritomo’s exile continued into another history. The victory of one conflict did not determine every later ending. Following the attack, imperial movement and Rokuhara in sequence makes the changing balance of the capital more intelligible without reading the entire future backward into it.