(In "Shinchoko-ki" (Biography of Nobunaga ODA), the post was called 'Kanto-hasshu no gokeigo' (post guarding eight provinces in the Kanto region), or 'Togoku-no-gi otoritsugi' (agency post concerning matters related to the eastern part of Japan, particular Kanto region), in "Date jika kiroku" (historical record of the Sendai clan), the post was called 'Togoku bugyo' (magistrate in the eastern part of Japan), and in "Hoan Nobunaga-ki"(Biography of Nobunaga ODA written by Hoan OZE) and "Buke-jiki" (record about samurai family), the post was called 'Kanto Kanrei.'
（『信長公記』では「関東八州の御警固」「東国の儀御取次」、『伊達治家記録』では「東国奉行」、『甫庵信長記』と『武家事記』では「関東管領」と呼称されている。