In part 2 of this series on popular stories & events highlighting the yari (aka Japanese spear), we go in the direction of legends. Japan has had its fair share of people, places, animals, nature, and things elevated to a level beyond normal existence. There are several cases like this involving the yari, especially the one called “Amenonuhoko” (天沼矛), which was used by the deity Izanagi-no-mikoto (伊邪那岐命) to create Japan and the world in old Japanese mythology. These objects of legends were first passed down from word of mouth, then to being jotted down in documentations, to now being depicted in pop culture such as video games and dramas.
For this article, we will look at three special yari that are labeled as “Tenka Sanmeisō” (天下三名槍), or “Three Great Spears of Japan” in English¹. Being real spears, we’ll cover when each was created, which individuals were lucky to be the owner, and whether they survived into modern times or not. Along with this, small but unique details that add to these yari being a cut above the rest will also be covered. Resources used to write this include the following:
- Nagoya Touken World (https://www.meihaku.jp/)
- Nikkōdō (https://nikkoudou-kottou.com/)
- Lifehack Analyzer (https://lifehack-analyzer.com/)
NIHONGŌ, THE IMPERIAL SPEAR
The 1st of these legendary spears is known as the Nihongō (日本号)², believed to have been made during the Muromachi period (1336 ~ 1573). A large yari featuring a long blade with an engraving of a Buddhist depiction of a Kurikara dragon wrapping around a sword at the base. It also boosts a lacquered wooden shaft, and is well adorned with fine fittings. By design, it is considered an exquisite weapon designed as a treasured weapon of the Imperial family. Originally it was just known as an Imperial spear. It was later that when it passed into the possession of Toyotomi Hideyoshi, that he would give it the name “Nihongō”. This name can be interpreted as “No. 1 spear of Japan”.

Here are its known dimensions:
- Blade length = 79.2 cm
- Spear weight = 912 g
It was considered the finest yari in existence that it was given the rank “Shōsani” (正三位), which is an official Senior Third Rank of the Imperial Court. Bearing such status, it is no wonder that it was recorded to having been passed down through the hands of individuals of high rank. The order goes as the following below.
The 106th Emperor Ōgimachi (1517 ~ 1593) is considered to have been the first owner of the Nihongō. He would at some point bestow it upon Ashikaga Yoshiaki, the 15th Shogun of the Muromachi period. For awhile it remained in the possession of Yoshiaki until he formed a working relationship with Oda Nobunaga around 1570. Being around the time when Nobunaga was rising in power, some sources say that once he learned about the spear’s origin being a treasured weapon from the Imperial Palace, he demanded it from Yoshiaki to the point where they almost went to war just for the sake of it. Other sources say that it was a peaceful exchange between the two. In any event, Nobunaga would successful claim the Nihongō. At some point, this yari was passed into the hands of Toyotomi Hideyoshi, Oda Nobunaga’s successor. Finally, possibly after his impressive service on the battlefield, Fukushima Masanori, a retainer of the Toyotomi clan³, was rewarded the Nihongō from Hideyoshi.

From this point comes interesting stories that illustrate the Nihongō’s whereabouts later down the generations. First is a tale about how Masanori would lose it to Mori Tomonobu (母里友信), a retainer of the Kuroda clan, in a drinking game. From there, it would remain in the Mori family line for several generations. Between 1800s to 1900s, it would once again get passed into different hands, but in the most peculiar ways. In one instance, an individual was able to purchase it for 1,000 yen (almost 9 dollars). Later, it would once again be bought, but this time for 10,000 yen (almost 100 dollars). It would eventually be acquired by a descendant of the Kuroda family in around 1920s. Finally, a museum in Fukuoka prefecture would acquire the Nihongō, where it is said to be til this day.
In honor of this Imperial spear, many smiths made attempts to recreate the Nihongō. Not just the blade itself, but its decorative fittings as well.
OTEGINE, THE MALLET SPEAR
The next spear is an interesting one, both in name, design, and origin. It is called “Otegine” (御手杵). This name means “Tapering Mallet”. It was created during the Muromachi period by Gojō Yoshisuke (五条善助), who belonged to a well known sword smith in Shimadashi, Suruga Province. It was made at the request of Yūki Harusaki, lord of Yūki castle in Shimōsa Province. Harusaki would keep its splendor alive through his foster child, Yūki Hideyasu. He in turn would then pass it down to his 5th son, Naomoto, who at one point also inherited the Yūki surname. One thing to note is that Hideyasu was originally from the Matsudaira clan, but was adopted into the Yūki clan at a young age. Due to the ties, the Otegine would be associated with both families, as it would be passed down to a few members of the Matsudaira family in later years as well.


Two pictures, with a clear view of a replica Otegine and its shaft on the left. To the right, the blade of the replica Otegine placed on a stand next to its mallet-shaped sheath. From Wikipedia.
Out of the 3 legendary yari, the Otegine is known to be not only the longest, but also the heaviest. The blade itself was a sight to see, as the blade was long and triangular design, and featured a rather deep groove that ran up through the center. It also featured an even longer tang, which made it solidly reinforced when fitted into the shaft, and allowed the user to perform sweeping cuts along with thrusts.
Here are its known dimensions:
- Blade length = 138 cm
- Tang = 215 cm
- Shaft length = 215 cm
The name “Otegine” comes from the very unique sheath it is paired with. Originally, when Harusaki had the spear created, it came with a sheath that was wider at both ends, and tapers towards the middle. This shape resembled a type of mallet or pestle used for pounding mochi (餅, rice cake), thus the unique name given to the spear. At some point, Harusaki had a fur covered mallet-shaped sheath devised. This is for decorative purposes.

While its blade was tempered extremely well and has potential of being effective on the battlefield, its sheer size and weight made too cumbersome to be used proficiently. While it may not had seen use in actual warfare, the Otegine was symbolic and showed one’s status when heading to the battlefield. It is said that it would often be brought from the Yūki castle to the commander’s camp and used like an umajirushi (馬印, banner carried next to a commander’s horse) right before going into battle. There were even occasions during 1635 when Tokugawa Iemitsu, the the 3rd Shogun of the Tokugawa Bakufu, had the Otegina brought out and used as a symbolic lead during official processions by those of the Yūki clan and Matsudaira clan to Edo (present-day Tokyo). Note that carrying the Otegine was no easy feat, with or without its furry sheath, as its sheer weight was overbearing to be carried by just one person over long distances.
The Otegine’s last whereabouts was in the possession of the Matsudaira family, but tragedy would struck in an unexpected way. This spear was destroyed by fire bombings during WWII. Although it was stored away in a special containment, the heat from the fire caused by the bombings would melt the steel spear blade, and burn the shaft to a crisp. Unfortunately, this state left it impossible to repair. On a positive note, replicas were made of the Otegine in the early 21st century, and are up for display at several museums, including the Yūki Kurabikan (Yūki Collection Gallery) in Yūki City, Ibaraki Prefecture, and Kawagoe-shiritsu Hakubutsuken (Kawagoe City Museum) in Kawagoe City, Saitama Prefecture.
TONBOKIRI, THE DRAGONFLY SLAYER
The 3rd treasured yari is known as “Tonbokiri” (蜻蛉切り). Out of the three spears, this one is renown for its overall performance on the battlefield. Of course, credit also goes to the one who was wielding it as well — Honda Tadakatsu (本田忠勝).

In the Muromachi period, The Tonbokiri was crafted by Fujiwara Masazane, a swordmaker from the Muramasa smith in Ise Province. It is a large spear, designed in the fashion of a “ōsasahoyari” (大笹穂槍), or “spear with a large bamboo grass-shaped blade”. On this blade are engraved 3 bonji (梵字, sanskrit symbols) above what looks to be a vajra-like sword engraving. From top to bottom, here’s what each symbolize⁴:
- Jizō Bōsatsu, guardian Buddha of children and travelers, and deity known to be compassion for those suffering
- Amida Nyōrai, Buddha recognized for infinite light and life
- Kannon Bōsatsu, Buddha of compassion for others
It features the following known dimensions:
- Blade length = 43.7 cm
- Tang = 55.6 cm
- Shaft = 4.5 m
Take note that the Tonbokiri was not the longest spear by the standard followed during Sengoku period. When this yari was crafted, Tadakatsu was already up in years. Apparently he found wielding the average length yari abit cumbersome, so he intentionally had the Tonbokiri’s shaft shorten by around 90 cm.
The name Tonbokiri means “Dragonfly Slayer”. This is because the blade of this yari is said to be so sharp that a struck dragonfly would be severed into 2. To top this, it’s said that even if this spear were not moving, a dragonfly that perches onto the tip of the blade would also be divided into 2. These claims elevate the Tonbokiri as a devastating weapon, even if they can’t be taken literally.
As mentioned earlier, the owner of the Tonbokiri was Honda Tadakatsu, who himself was a legend in his own rights. Tadakatsu was one of Tokugawa Ieyasu’s most trusted and loyal vassals during Sengoku period. A large man in stature since his youth, it is said he was a force to be reckoned with in skirmishes, as he participated in as many as 57 battles during his lifetime, and never sustained any damage. For his service, Tadakatsu was among Ieyasu’s top 16 generals, and was named one of the “4 Heavenly Kings⁵”.
While it’s not recorded that Tadakatsu’s successful career was all thanks to Tonbokiri, there is little argument that he did take it to battle. In historical records, along with Tadakatsu’s achievements due to his undying loyalty to Tokugawa Ieyasu, his prowess with the yari was noted. After his death, this yari was passed down his family line to his descendants for several generations. Today, it is in the safe keeping of a museum in Shizuoka, Japan.
THREE FAMOUS SPEARS: FUN FACTS
A good amount of info regarding the Tenka Sanmeisō was provided above. However, it’s not quite over as there are plenty more tidbits and rumors regarding the 3 yari. Below are lists of extra info for each yari.

General
- All 3 yari are considered ōmi yari (大身槍). What this means is that these are in a class of very long spears, especially with the blades they are outfitted with.
- Originally, just the Nihongō and the Otegine were considered treasured spears. There was a comparison between the two based on the geographical significance of Japan predating modern times. The Nihongō was called the “great spear of western Japan” due to originating there, while the Otegine was the “great spear of eastern Japan” for the same reason.
Nihongō
- The tang of this spear blade was unsigned. Speculations are that the spear was of the Kanabō style (金房派) of Yamato Province, but this has not been proven yet.
- Despite its grand image, the Nihongō was not used in battle. There is one rumor that it was taken overseas during the invasion of Korea in 1592 by Mori Tomonobu, where it survived fierce battles. Unfortunately, there is no solid evidence to verify this.
Otegine
- In the Matsudaira family, there are 2 legends about the Otegine. The 1st stating that when the sheath is removed, snow flakes fall down, while the 2nd is it will rain when it is leading a procession to Edo. There is no particular meaning behind these, but adds more sentimental feelings to the splendor of this yari.
- Speaking of rain, it is said that the sheath’s fur absorbs water when it rains, adding more than 50% of it natural weight. Those who have to carry it during a procession on a rainy day had a lot of work on their hands.
Tonbokiri
- What adds to the praise given to Tonbokiri is where it originated from. Mikawa is known to be home of a group of smiths labeled “Mikawa Monju” (三河文殊). Mikawa prefecture is known for many weapons being produced there, which many important people sent commissions to, including Tokugawa Ieyasu. These smiths were liken to miracle workers, as their products were rumored to perform better…as if they were magical. Since the Tonbokiri was crafted by a smith who is part of the Muramasa line, this was a major selling point.
- It is said that Honda Tadakatsu had another spear commissioned, and that one was also named Tonbokiri. It is not certain that this is true, nor the reason being supposedly possessing 2 yari with the same name.
CONCLUSION
This here concludes this article on the Tenka Sanmeisō, and what makes them legendary weapons. With evidence of their existence, they are more than just rumors leaping out from the pages of history, as they have survived over many generations and made it to modern times (albeit the Otegine). The also ends this 2-part series highlighting the yari and its value in Japanese history. Hope this was enjoyable, as well as informative, regarding one of Japan’s strongest weapons.
1) Can also be pronounced “Tenga Sanmeisō” Also known as the shorter title, “Tenka Sansō” (天下三槍).
2) Can also be read as “Hi-no-moto Gō”.
3) Fukushima Masamori was introduced in part 1 of this series, which can be read here.
4) The descriptions come from Lifehacker Analyzer website.
5) This is “Shitennnō” (四天王) in Japanese.