Koshōshō

Koshōshō is the historical nickname for Motochika's concubine. According to Chōsokabe Kyukkikō and Chōsokabe Keizu, Koshōshō was supposedly much older than her mate. She gave birth to one of his sons –who is only known under his title in historical records, Inner Bureaucrat of the Right– and one daughter, Kozaishō. While her mention in historical texts ends here, she is the topic of many unverifiable stories and legends.