Shin-Kôgimon-in was the last favorite consort of Emperor Go-Mizunoo, and the mother of two Imperial princesses and four Imperial princes, one of whom went on to take the throne as Emperor Reigen (r. 1663-1687).
Her children included four sons, Gyôjo (1640-1695, abbot at Myôhô-in), Shinkei (1649-1707, abbot at Ichijô-in), Sonshô (1651-1694, abbot at Shôren-in), and Emperor Reigen (1654-1732), and two daughters, Shinanomiya Tsuneko (1642-1702), who went on to marry Konoe Motohiro, and Eikyô (1657-1686), who became abbess at Daishô-ji.
It is said that she and her children, along with her son-in-law Konoe Motohiro, but with the exception of Emperor Reigen, formed a close-knit clique within the Imperial Court, constantly paying one another visits and engaging in social and cultural activities together.
She was posthumously elevated to jugô, a rank just below that of Empress.
- Cecilia Segawa Seigle, "Shinanomiya Tsuneko: Portrait of a Court Lady," in Anne Walthall (ed.), The Human Tradition in Modern Japan, Scholarly Resources, Inc. (2002), 4-5.
- Segawa Seigle, 12.