 Three contemporary sources, including one discovered by Santō Kyōzan, younger brother of the famous writer Santō Kyōden, describe her as dying of pneumonia or tuberculosis at the age of nineteen.The most complete account, "Takabyōbu kuda monogatari" ("Tales of Grumbling Otokodate", 1660), adds that several of Takao's former suitors held a memorial for her and bought a tombstone, but they were criticized for not showing her the same devotion during her final illness.Another key inaccuracy in the tale involves Date Tsunamune, whose family members did attempt to unseat him, but who had already given up his position by the time of their encounter.