Takako had Arisugawanomiya Imperial Prince Tsunahito, the Cloistered Imperial Prince 承眞 of Sanzen-in Temple, the priestly Imperial Prince 舜仁 of Rinno-ji Temple and priestly Imperial Prince Soncho of Chion-in Temple as the older brothers, and the Princess Yoshiko (Teihoin, the legal wife of Nariaki TOKUGAWA, the lord of the Mito Domain) as the younger sister.
兄に有栖川宮韶仁親王・三千院承眞法親王・輪王寺舜仁入道親王・知恩院尊超入道親王など、妹に吉子女王（貞芳院、水戸藩主・徳川斉昭正室）などがいる。