Born around 1594 as the eldest daughter of Date Masamune. Her childhood name was Irohahime (also written Gorohachihime). In 1601 she was betrothed to Matsudaira Tadateru, the sixth son of Tokugawa Ieyasu, and the formal wedding ceremony was held in 1609. This politically arranged marriage was designed to strengthen the alliance between the Date and Tokugawa clans, stabilizing the Date's position within the Tokugawa shogunate. However, Tadateru was notorious for drunkenness and erratic behavior, and in 1616 his elder brother Shogun Tokugawa Hidetada stripped him of his domain on grounds of misconduct and banished him to Ise. Having borne no children, Irohahime returned to Sendai, took Buddhist vows, and adopted the name Tenrin-in. She devoted herself thereafter to the world of faith, reportedly working to establish temples for memorial services for successive Sendai domain lords. The temple Tenrin-in, still standing today in Wakamatsu Ward, Sendai, was founded by her as a family memorial temple and continues to be carefully preserved. Though her life was marked by the vicissitudes of political expediency, she found deep peace in Buddhism in her later years.

Destined from childhood for a political marriage, she weathered the adversity of her husband's exile with composure, took vows, and lived quietly. A woman who held the pride of Masamune's daughter while finding peace in the Buddhist path.

The temple Tenrin-in (Wakamatsu Ward, Sendai), which she founded, stands today as a historic cultural asset. She is remembered as a witness to the Date-Tokugawa political alliance and as a woman who overcame a turbulent life through Buddhist faith.