After Nobunaga was killed by his vassal Mitsuhide AKECHI on July 1, 1582 in the Honnoji Incident, Kazumasu TAKIGAWA, who was the Oda family's Kanto Kanrei (a shogunal deputy for the Kanto region) was defeated by the Gohojo clan in the Battle of Kannagawa River and retreated to Ise.
同年6月2日(旧暦)に信長が本能寺の変で家臣の明智光秀に討たれると、織田家の関東管領であった滝川一益は、神流川の戦いで後北条氏に敗れて伊勢に引き上げてしまう。