Kanrei in the context of "Kantō Kubō"

Shogun (将軍, shōgun; English: /ˈʃoʊ.ɡʌn/ SHOH-gun, Japanese: [ɕoː.ɡɯɴ, -ŋɯɴ] ), officially seii taishōgun (征夷大将軍; Japanese: [seꜜi.i | tai.ɕo(ꜜ)ː.ɡɯɴ, seꜜː-, -ŋɯɴ] lit. 'Commander-in-Chief of the Expeditionary Force Against the Barbarians'), was the title of the military rulers of Japan during most of the period spanning from 1185 to 1868. Nominally appointed by the Emperor, shoguns were usually the de facto rulers of the country, except during parts of the Kamakura period and Sengoku period when the shoguns themselves were figureheads, with real power in the hands of the shikken (執権) of the Hōjō clan and kanrei (管領) of the Hosokawa clan. In addition, Taira no Kiyomori and Toyotomi Hideyoshi were leaders of the warrior class who did not hold the position of shogun, the highest office of the warrior class, yet gained the positions of daijō-daijin (太政大臣, Chancellor of the Realm) and kampaku (関白, Imperial Regent), the highest offices of the aristocratic class. As such, they ran their governments as its de facto rulers.

The office of shogun was in practice hereditary, although over the course of the history of Japan several different clans held the position. The title was originally held by military commanders during the Heian period in the eighth and ninth centuries. When Minamoto no Yoritomo gained political ascendency over Japan in 1185, the title was revived to regularize his position, making him the first shogun in the usually understood sense.

Nagao Kagetora (長尾 景虎; February 18, 1530 – April 19, 1578), later known as Uesugi Kenshin (上杉 謙信), was a Japanese daimyō (magnate). He was born in Nagao clan, and after adoption into the Uesugi clan, ruled Echigo Province in the Sengoku period of Japan. He was one of the most powerful daimyō of the Sengoku period. Known as the "Dragon of Echigo", while chiefly remembered for his prowess on the battlefield as a military genius and war hero, Kenshin is also regarded as an extremely skillful administrator who fostered the growth of local industries and trade, as his rule saw a marked rise in the standard of living of Echigo.

Kenshin is famed for his honourable conduct, his military expertise, a long-standing rivalry with Takeda Shingen, his numerous defensive campaigns to restore order in the Kantō region as the Kanto Kanrei, and his belief in the Buddhist god of war Bishamonten. Many of his followers and others believed him to be the avatar of Bishamonten and called Kenshin the "God of War".

Kō no Moronao (高 師直; died 24 March 1351, also Moronō) was a Japanese samurai of the Nanboku-chō period who was the first to hold the position of Shitsuji (Shōgun's Deputy). He was appointed by Ashikaga Takauji, the first shōgun of the Ashikaga shogunate. As Deputy, he served not only an administrative governmental function, but also as general of the Shogun's armies. He fought for the Ashikaga against the loyalist forces of the Southern Court during the wars of the Nanboku-chō period and killed its generals Kitabatake Akiie and Kusunoki Masayuki.

Moronao was an iconoclast with no intention of following tradition, particularly insofar as the Emperor was concerned. On the subject, he once said:

Kantō kubō (関東公方) (also called Kantō gosho (関東御所), Kamakura kubō (鎌倉公方), or Kamakura gosho (鎌倉御所)) was a title equivalent to shōgun assumed by Ashikaga Motouji after his nomination to Kantō kanrei, or deputy shōgun for the Kamakura-fu, in 1349. Motouji transferred his original title to the Uesugi family, which had previously held the hereditary title of shitsuji, and would thereafter provide the Kantō kanrei. The Ashikaga had been forced to move to Kyoto, abandoning Kamakura and the Kantō region, because of the continuing difficulties they had keeping the Emperor and the loyalists under control (see the article Nanboku-chō period). Motouji had been sent by his father, shōgun Ashikaga Takauji, precisely because the latter understood the importance of controlling the Kantō region and wanted to have an Ashikaga ruler there, but the administration in Kamakura was from the beginning characterized by its rebelliousness. The shōgun's idea never really worked and actually backfired.

After Motouji, all the kubō wanted power over the entire country. The Kantō kubō era is therefore essentially a struggle for the shogunate between the Kamakura and the Kyoto branches of the Ashikaga clan. In the end, Kamakura had to be retaken by force by troops from Kyoto. The five kubō recorded by history, all of which were Motouji's bloodline, were (in order Motouji himself) Ujimitsu, Mitsukane, Mochiuji and Shigeuji.

Hosokawa Katsumoto (細川 勝元; 1430 – June 6, 1473) was one of the Kanrei, the deputies to the Shōgun, during Japan's Muromachi period. He is famous for his involvement in the creation of Ryōan-ji, a temple famous for its rock garden, and for his involvement in the Ōnin War, which sparked the 130-year Sengoku period. His childhood name was Sumiakamaru (聡明丸).

His conflicts with his father-in-law, Yamana Sōzen, who resented the power Hosokawa had as Kanrei, were among those that ignited the Ōnin War in 1467. When the Shōgun Ashikaga Yoshimasa had a son in 1464, Yamana took this as an opportunity to oppose Hosokawa further, supporting the child as heir to the Shogunate. Hosokawa had always worked closely with the Shōgun's brother Ashikaga Yoshimi and supported his claim to the shogunate.