Concerning the fourth battle of Kawanakajima, "Joko-ji Temple Monjo" (a document remaining in a temple having located in Naganuma, Shinshu-Mizuguchi County; present Joko-ji Temple is located at a place different from this site) includes a section related to the Battle of Kawanakajima, and it is described that the temple was damaged by fires in a battle on November 5 (in the old calendar), 1561
また、第四次川中島合戦に関して『浄興寺文書』（信州水内郡長沼にあった寺に伝わる文章、現在の浄興寺は場所が異なる）と言う文章に川中島合戦に関連する一節があり、そこには永禄4年9月28日、合戦の折に寺が戦火にあった旨の記述がある。