Although Masanori KAGAWA began writing the "Intokuki," judged to be the source on which Intoku taiheiki is based, he died in 1660, before making it more than halfway through the writing.
香川正矩はその原典というべき『陰徳記』を書くも、万治3年（1660年）執筆半ばにして逝去した。