Hōjō clan in the context of "Samurai"

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.

The shikken (執権; Japanese pronunciation: [ɕi̥k.keɴ]) was a senior government post held by members of the Hōjō clan, officially a regent of the shogunate. From 1199 to 1333, during the Kamakura period, the shikken served as the head of the bakufu (shogun's government). This era was referred to as Regent Rule (執権政治, Shikken Seiji).

During roughly the first half of that period, the shikken was the de facto military dictator of Japan (excluding the independent Northern Fujiwara). In 1256 the title of shikken was relegated to the second in command of the Tokusō (a separate rank also monopolized by the Hojō clan). By the Muromachi period (1333–1573) the position, though not abolished, had lost much of its power and was no longer considered as one of the top ranks. The position was abolished after the Muromachi period.

The Kamakura shogunate (Japanese: 鎌倉幕府, Hepburn: Kamakura bakufu) was the feudal military government of Japan during the Kamakura period from 1185 to 1333.

The Kamakura shogunate was established by Minamoto no Yoritomo after victory in the Genpei War and appointing himself as shōgun. Yoritomo governed Japan as military dictator from the eastern city of Kamakura with the emperor of Japan and his Imperial Court in the official capital city of Heian-kyō (Kyoto) as figureheads. The Kamakura shōguns were members of the Minamoto clan until 1226, the Fujiwara clan until 1252, and the last six were minor princes of the imperial family. The Hōjō clan were the de facto rulers of Japan as shikken (regent) of the shōgun from 1203. The Kamakura shogunate saw the Jōkyū War in 1221 and the Mongol invasions of Japan under Kublai Khan in 1274 and 1281. The Kamakura shogunate was overthrown in the Kenmu Restoration under Emperor Go-Daigo in 1333, re-establishing Imperial rule until Ashikaga Takauji and his offspring overthrew the imperial government and founded the Ashikaga shogunate in 1336 (Nanboku-chō period).

Kanrei (管領) or, more rarely, kanryō, was a high political post in feudal Japan; it is usually translated as shōgun's deputy. After 1349, there were actually two Kanrei, the Kyoto Kanrei and the Kantō Kanrei. But originally from 1219 until 1333, the post was synonymous with the Rokuhara Tandai, and was based in Kyoto. The Hōjō clan monopolized this post, and there were during this period two Deputies – a southern chief, and a northern chief. From 1336 to 1367, the Deputy was called Shitsuji (執事). The first to hold this title was Kō no Moronao.

Following the fall of the Kamakura shogunate and abolition of the Rokuhara Tandai position, both occurring in 1333, Ashikaga Takauji created the post of Kantō Kanrei, or Shogun's Deputy in the East (Kantō generally refers to the area around and including modern Tokyo).

The Kenmu Restoration (Japanese: 建武の新政, Hepburn: Kenmu no shinsei) was a three-year period of Imperial rule in Japanese history between the Kamakura period and the Muromachi period from 1333 to 1336. The Kenmu Restoration was an effort made by Emperor Go-Daigo to overthrow the ruling Kamakura Shogunate (de facto ruled by Hōjō clan) and restore the Imperial House to power in Japan, returning to civilian government after 148 years of de facto military government from Kamakura. Go-Daigo launched the Genkō War in 1331 against the Kamakura Shogunate but was defeated and forced to exile to the Oki Islands. Go-Daigo launched a second uprising, and with the assistance of the defected Kamakura general Ashikaga Takauji and rebel leader Nitta Yoshisada, defeated the Kamakura Shogunate at the siege of Kamakura in 1333. The Imperial House was restored to power but Go-Daigo's policies failed to satisfy his major samurai supporters and most Japanese people. The Kenmu Restoration was ultimately overthrown when Takauji became Shōgun and founded the Ashikaga Shogunate in 1336, beginning the "Northern and Southern Courts" period and the Muromachi period.

The Kenmu Restoration was the last time the Emperor of Japan held significant power until the Meiji Restoration in 1868.

Tokusō (Japanese: 得宗) was the title (post) held by the head of the mainline Hōjō clan, who also monopolized the position of shikken (regents to the shogunate) of the Kamakura shogunate in Japan during the period of Regent Rule (1199–1333). It’s important not to confuse a regent of the shogunate with a regent of the Emperor (the latter are called Sesshō and Kampaku). Shikkens were the first regents to the shogunate.

The tokusō from 1256 to 1333 was the military dictator of Japan as de facto head of the bakufu (shogunate); despite the actual shōgun being merely a puppet. This implies that all other positions in Japan—the Emperor, the Imperial Court, Sesshō and Kampaku, and the shikken (regent of the shōgun)—had also been reduced to figureheads.

Jōkyū War (承久の乱, jōkyū no ran), also known as the Jōkyū Disturbance or the Jōkyū Rebellion, was fought in Japan between the forces of Retired Emperor Go-Toba and those of the Hōjō clan, regents of the Kamakura shogunate, whom the retired emperor was trying to overthrow.

The decisive battle of the conflict was fought at Uji in 1221, the third year of the Jōkyū era, just outside the imperial capital of Kyōto. It was the third battle to be fought there in less than half a century.

Rokuhara Tandai (六波羅探題) was the post of the chiefs of the Kamakura shogunate in imperial capital Kyoto whose agency, the Rokuhara (六波羅), kept responsibility for security in Kinai and judicial affairs on western Japan, and negotiated with the imperial court. Despite keeping security, the Rokuhara were also a sort of secret police and widely feared.

Rokuhara Tandai was set up after the Jōkyū Incident in 1221. The two chiefs were called Kitakata (北方) and Minamikata (南方), respectively. Kitakata was higher-ranking than Minamikata. Like shikken and rensho, both posts were monopolized by the powerful Hōjō clan. The agency was destroyed with the fall of Kamakura shogunate in 1333.

Nitta Yoshisada (新田 義貞; Japanese pronunciation: [ɲiꜜt.ta | jo.ɕi̥.saꜜ.da], 1301 – August 17, 1338) also known as Minamoto no Yoshisada was a samurai lord of the Nanboku-chō period Japan. He was the head of the Nitta clan in the early fourteenth century, and supported the Southern Court of Emperor Go-Daigo in the Nanboku-chō period. He famously marched on Kamakura, besieging and capturing it from the Hōjō clan in 1333.

Later, he fought the Ashikaga brothers on the Emperor's behalf in a see-saw campaign which saw the capital change hands several times. After a peaceful compromise was agreed, Yoshisada was entrusted with two royal princes. At the siege of Kanegasaki (1337), both princes were killed, along with Yoshisada's son, although Yoshisada was able to escape. He committed seppuku when his horse was killed at the siege of Kuromaru.

The 1333 siege of Kamakura was a battle of the Genkō War, and marked the end of the power of the Hōjō clan, which had dominated the regency of the Kamakura shogunate for over a century. Forces loyal to Emperor Go-Daigo and led by Nitta Yoshisada entered the city from multiple directions and destroyed it; in the end, the Hōjō leaders retreated to Tōshō-ji, the Hōjō family temple, where they committed suicide with the rest of the clan.

The Nitta clan (新田氏, Nitta-shi; Japanese pronunciation: [ɲiꜜt.ta(.ɕi)]) was one of several major families descended from the Seiwa Genji, and numbered among the chief enemies of the Hōjō clan regents, and later the Ashikaga shogunate. The common ancestor of the Nitta, Minamoto no Yoshishige (1135–1202), was the elder brother of Minamoto no Yoshiyasu, the common ancestor of the Ashikaga clan. Yoshishige was a landowner in the Nitta District of Kōzuke Province in present-day Gunma Prefecture. Yoshishige supported Minamoto no Yoritomo (1147–1199) in the Battle of Ishibashiyama of 1180 against the Taira clan.

The Nitta clan rose to importance in the early 13th century; they controlled Kozuke Province, and had little influence in Kamakura, the capital of the Kamakura shogunate, because their ancestor, Minamoto no Yoshishige had not joined his fellow clansmen in the Genpei War a century earlier.

The Hatakeyama clan (Japanese: 畠山氏, Hepburn: Hatakeyama-shi) was a Japanese samurai clan. Originally a branch of the Taira clan and descended from Taira no Takamochi, they fell victim to political intrigue in 1205, when Hatakeyama Shigeyasu, first, and his father Shigetada later were killed in battle by Hōjō forces in Kamakura. After 1205 the Hatakeyama came to be descendants of the Ashikaga clan, who were in turn descended from Emperor Seiwa (850–880) and the Seiwa Genji branch of the Minamoto clan.

The Rensho (連署; "co-signatory") was the assistant to the shikken (regent) of the Kamakura shogunate in medieval Japan.

The rensho placed his signature next to that of the shikken on official orders. In 1224 the third shikken Hōjō Yasutoki appointed Hōjō Tokifusa as the first rensho. From then on, the rensho was chosen from influential members of the Hōjō clan, but not from the main line of the clan (tokusō), with the one exception of Tokimune, who temporarily occupied the position from 1264 to 1268.

The Later Hōjō clan (Japanese: 後北条氏, Hepburn: Go-Hōjō-shi) was one of the most powerful samurai families in Japan in the Sengoku period and held domains primarily in the Kantō region. Their last name was simply Hōjō (北条), but were called "Later Hōjō" to differentiate between the earlier Hōjō clan who had the same name and mon, even though it was not their official family name.

Hōjō Tokimasa (北条 時政; Japanese pronunciation: [hoː.(d)ʑoː (|) to.kʲiꜜ.ma.sa], 1138 – February 6, 1215) was a Japanese samurai lord who was the first shikken (regent) of the Kamakura shogunate and head of the Hōjō clan. He was shikken from 1203 until his abdication in 1205, and Protector of Kyoto from 1185 to 1186.