Women of the Sengoku Era and Their Swords — Princesses, Consorts, and Armed Women

Sengoku-era Japan evokes bloody warrior battles, but the women of that era also had deep ties to swords. Women who left their names as wives, mothers, and daughters of famous warlords sometimes protected their lives with blades and joined combat to defend family and castle. This article explores Sengoku women's relationship with swords through historical examples.

Kaiken — Women's Self-Defense Blade

For samurai-class Sengoku women, kaiken were daily essentials. Kaiken are small daggers about 20 cm long, carried tucked in the kimono or obi. Their roles were multifaceted — not merely decorative but practical weapons, tools, and symbols.

Self-defense: In a warring age, women were always at risk of violence. Kaiken served to defend against armed soldiers or, to avoid captivity's shame, as means of ending one's own life. "Women defend themselves with kaiken" was not mere slogan but sometimes actual conduct.

Utility: Cutting hair, adjusting clothing, assisting with meals — kaiken saw daily use.

Symbolism: Kaiken grounded samurai women spiritually and were often among bridal goods from the natal home, maintaining identity in the marital household.

Naginata — The Samurai Woman's Combat Weapon

In Sengoku, naginata was an important martial art samurai women studied. As discussed in the sohei article, naginata combined long shaft with curved blade, enabling reach-based combat. Even physically weaker women could deliver powerful strikes using body weight and centrifugal force, making it well-suited to women.

Samurai daughters trained from childhood in naginata, acquiring "women's martial skill." This was no mere formality — numerous records document women taking up arms when castles faced fall.

Examples — Armed Sengoku Women

Sengoku history preserves records of women who took up weapons.

### Ii Naotora

Ii Naotora, though a woman, inherited the Ii family and ruled the domain as "woman jitō." As portrayed in the NHK taiga drama, amidst Sengoku's upheaval she reportedly took up swords and naginata to fulfill her warrior duties.

### Tachibana Ginchiyo

Tachibana Ginchiyo was the daughter of Tachibana Dosetsu, a Kyushu daimyo. Succeeding her father, she became a female castle lord. She is said to have armed her female retainers to defend Tachibanayama Castle, organizing "women's troops."