Kantō kubō (関東公方) 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. 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.

Kamakura officially Kamakura City is a city of Kanagawa Prefecture in Japan. It is located in the Kanto region on the island of Honshu. The city has an estimated population of 172,929 and a population density of 4,359 people per km2 over the total area of 39.67 km2 (15.32 sq mi). Kamakura was designated as a city on 3 November 1939.