Also Sawako ARIYOSHI wrote a novel, "Kazunomiya-sama Otome" with a story about someone who was acting as a double for Kazunomiya. (A totally different theory compared with the above was used in the novel.)
その他、有吉佐和子などが、替え玉説をモチーフに小説『和宮様御留』を書いている（上記の説とはまた違った説を用いている）。