Early life

She was born in 1597 as the eldest daughter of the then-daimyo and later shōgun Tokugawa Hidetada and his wife Oeyo during the Warring-States period of Japanese history. Her paternal grandfather was the founder of the Tokugawa shogunate, Tokugawa Ieyasu; her maternal grandfather was Azai Nagamasa; her grandmother was Oichi, whose brother was Oda Nobunaga. When she was six or seven, her grandfather wanted her to marry Toyotomi Hideyori, who was the son of Toyotomi Hideyoshi.

In 1603, when Senhime was seven years old, she married the successor to the Toyotomi clan, Toyotomi Hideyori and lived with him in Osaka Castle along with his mother, Lady Yodo, who was a sister of Oeyo, Senhime's mother and accompanied by her wet-nurse, Gyōbukyō no Tsubone. Little is known about their life together, and her grandfather Tokugawa Ieyasu, besieged the castle in 1615, when she was nineteen. When Osaka castle fell, Hideyori committed ritual suicide beside his mother, his son was executed at the age of 7 years old. Senhime was rescued from the castle before it fell. Senhime also saved Hideyori's daughter with another woman, Tenshuni, and later adopted her.

Tadatoki's wife

Senhime and Honda Heihachirō, a 17th-century depiction, Tokugawa Art Museum, Nagoya

In 1616, Ieyasu remarried Senhime to Honda Tadatoki, a grandson of Honda Tadakatsu, and in few years she moved to Himeji. Honda Tadatoki's mother, Kumahime, was the daughter of Matsudaira Nobuyasu and hence a granddaughter of Ieyasu.

A famous legend tells that a certain Sakazaki Naomori planned to capture Senhime just before her remarriage, wishing to marry her himself. However his plan was revealed and Naomori was either killed or forced to commit suicide. It was long believed that Naomori was the one who saved Senhime out from the Osaka Castle, believing the words of Tokugawa Ieyasu that he would give Senhime to whoever rescued her, though recently this has been doubted. Stories tell that Senhime refused to marry Naomori, whose face was ill-favored because of the burn he got when he saved her, and rather preferred handsome Tadatoki.

Senhime and Tadatoki had an amicable marriage and had two children together: a daughter, Katsuhime (勝姫), and a son, Kōchiyo (幸千代). However tragedy struck when her son died at the age of three, and five years later in 1626, her husband died of tuberculosis. Her mother, Oeyo (then known as Sūgen'in) died in the same year. As was the tradition for a widow at that time, Senhime cut her hair short and became a Buddhist nun, taking the name Tenjuin (天樹院), moved back to Edo and spent the rest of her life there. After Tokugawa Ietsuna's adoptive mother, Oman no Kata (known as Eikōin) died, Tenjuin become Ietsuna's adoptive mother.