He also left many manuscripts of documents, and among others, the existent manuscripts of "Kikki," the diary of Tsunefusa YOSHIDA, and "Entairyaku," the diary of Kinkata TOIN, were both mostly handwritten by Chikanaga.
またそれまでの諸記録の写本も多く残し、特に吉田経房の日記『吉記』や洞院公賢の日記『園太暦』の現存する写本の大部分は、親長の手によるものである。