Tonbogiri: The Legend of the Dragonfly Cutter Spear
In the pantheon of Japanese weaponry, few blades command as much respect and awe as the Tonbogiri. Known in English as the “Dragonfly Cutter,” this legendary spear is not merely a relic of war; it is a masterpiece of craftsmanship and a symbol of the unyielding spirit of the Samurai. For travelers and culture enthusiasts exploring Japan’s rich history, understanding the legend of the Tonbogiri offers a fascinating glimpse into the Sengoku period (Warring States era) and the warriors who shaped the nation.
The Origins of a Masterpiece
The Tonbogiri is celebrated as one of the “Three Great Spears of Japan” (Tenka Sansou), alongside the Nihongo and the Otegine. While the sword (katana) often takes center stage in samurai lore, the yari (spear) was frequently the primary weapon on the battlefield.
Forged during the Muromachi period, the Tonbogiri is attributed to the master swordsmith Fujiwara Masazane of the famous Muramasa school. The Muramasa smiths were renowned for creating blades of terrifying sharpness and cutting ability, often rumored to hold a bloodthirsty spiritual energy. The Tonbogiri is a testament to this lineage, featuring a large, beautiful triangular blade with intricate grooves (hi) carved into the steel.
Originally, the shaft of the spear was exceptionally long, measuring approximately 6 meters (about 20 feet), designed for use from horseback. However, as its wielder aged, the shaft was shortened to a more manageable length, though the lethal beauty of the blade remained untouched.
The Legend of the Dragonfly
The name Tonbogiri is derived from a specific and poetic legend that highlights the blade’s supernatural sharpness.
The Myth
According to folklore, the spear was once propped upright in a field during a pause in military campaigning. A dragonfly (tonbo), arguably one of nature’s most agile flyers, attempted to land on the tip of the blade to rest. The moment the insect’s body touched the edge, it was sliced purely by its own weight, without any force applied by a human hand. The insect fell to the ground, severed in two.
Witnessing this, the wielder named the spear Tonbogiri—literally “Dragonfly Cutter.” In Japanese culture, the dragonfly is known as the “victory insect” (kachimushi) because it only flies forward and never retreats. For a dragonfly to be cut by the weapon symbolized a power that transcended even the spirit of victory itself.
The Wielder: Honda Tadakatsu
The legend of the spear is inseparable from its master, Honda Tadakatsu (1548–1610). Tadakatsu was one of the “Four Heavenly Kings” serving Tokugawa Ieyasu, the unifier of Japan. He was a warrior of immense renown, famously fighting in over 50 battles without ever sustaining a significant wound. He was often referred to as “The Warrior who surpassed Death itself.”
The Tonbogiri was his constant companion. The image of Tadakatsu, adorned in his distinctive antlered helmet and wielding the massive Dragonfly Cutter, struck fear into the hearts of enemies and remains an iconic image in Japanese history today.
Modern Culture and Legacy
Today, the legend of the Tonbogiri has transcended historical texts to become a staple in modern pop culture.
- Video Games: Fans of the Samurai Warriors (Sengoku Musou) series or Basara recognize the weapon immediately in the hands of Honda Tadakatsu.
- Anime & Manga: The spear appears in various franchises, including Touken Ranbu, where the weapon is personified as a handsome warrior, introducing a new generation of fans to sword smithing history.
Despite the digital fame, the physical reality of the spear remains a revered object of art. It serves as a bridge connecting the violent reality of the 16th century with the aesthetic appreciation of the 21st century.
Traveler’s Tips: Viewing the Tonbogiri
Unlike many legendary weapons that are lost to time or kept in imperial vaults, the Tonbogiri still exists. However, viewing it requires some planning.
- Location: The spear is privately owned but is frequently entrusted to the Sano Art Museum in Mishima, Shizuoka Prefecture.
- Exhibitions: It is not on permanent display. It usually appears during special exhibitions featuring Japanese swords or treasures of the Honda clan. Travelers should check the Sano Art Museum’s schedule before planning a trip.
- Mishima City: If you visit Mishima to see the spear, take time to visit the Mishima Taisha Shrine, a historically significant site that Yoritomo Minamoto (the first Shogun) visited to pray for victory.
- Etiquette: When viewing Japanese blades, maintain a respectful silence. Do not touch the glass cases, and if allowed to view the blade out of the case (rare), always bow to the blade as a sign of respect to the smith and the spirit of the weapon.
Sources & Further Reading
For those wishing to delve deeper into the lore of Japanese weaponry and the Sengoku period, the following resources provide excellent context:
- The Tokugawa Jikki: The official records of the Tokugawa shogunate, which detail the exploits of generals like Honda Tadakatsu.
- Meiryo-kouhan: An Edo-period collection of anecdotes about warriors and their deeds.
- Kojiki & Nihon Shoki: While these ancient texts predate the Tonbogiri, they establish the foundational Shinto belief that weapons possess kami (spirits), a concept essential to understanding why a spear like Tonbogiri is revered as a sacred object rather than just a tool of war.