Nobunaga sent his vassal, Kazumasu TAKIGAWA, to Mayabashi-jo Castle of Kozuke Province as Kanto Kanrei (a shogunal deputy for the Kanto region), and gave him western Kozuke Province and a part of Shinano Province to govern the Kanto region.
信長は家臣の滝川一益を上野厩橋城に派遣して関東管領とし、上野西部と信濃国の一部を与え、関東の統治を目論んだ。