(born Nagasone Okisato) was a Japanese swordmaker of the early

Edo Edo (), also romanized as Jedo, Yedo or Yeddo, is the former name of Tokyo. Edo, formerly a (castle town) centered on Edo Castle located in Musashi Province, became the '' de facto'' capital of Japan from 1603 as the seat of the Tokugawa shogu ...

period. His father was an armorer who served

Ishida Mitsunari was a Japanese samurai and military commander of the late Sengoku period of Japan. He is probably best remembered as the commander of the Western army in the Battle of Sekigahara following the Azuchi–Momoyama period of the 16th century. He ...

, the lord of

Sawayama ''Sawayama'' is the debut studio album by Japanese and British singer Rina Sawayama. It was released on 17 April 2020 by Dirty Hit. The follow-up to her self-released debut EP '' Rina'' (2017), it received widespread acclaim from music critics, ...

. However, as Ishida was defeated by

Tokugawa Ieyasu Tokugawa Ieyasu (born Matsudaira Takechiyo; 31 January 1543 – 1 June 1616) was the founder and first ''shōgun'' of the Tokugawa shogunate of Japan, which ruled from 1603 until the Meiji Restoration in 1868. He was the third of the three "Gr ...

at the

Battle of Sekigahara The Battle of Sekigahara (Shinjitai: ; Kyūjitai: , Hepburn romanization: ''Sekigahara no Tatakai'') was an important battle in Japan which occurred on October 21, 1600 (Keichō 5, 15th day of the 9th month) in what is now Gifu Prefecture, ...

, the Nagasone family and some other craftsmen from Sawayama went to

Echizen Province was a Provinces of Japan, province of Japan in the area that is today the northern portion of Fukui Prefecture in the Hokuriku region of Japan. Echizen bordered on Kaga Province, Kaga, Wakasa Province, Wakasa, Hida Province, Hida, and Ōmi Provin ...

, where they took refuge in

Fukui City is the capital city of Fukui Prefecture, Japan. , the city had an estimated population of 255,332 in 107,553 households. Its total area is and its population density is about 476 persons per km2. Most of the population lives in a small central ...

Early history

Nagasone Okisato (長曽祢興里) was born in Nagasone-mura,

Ōmi Province was a Provinces of Japan, province of Japan, which today comprises Shiga Prefecture. It was one of the provinces that made up the Tōsandō Circuit (subnational entity), circuit. Its nickname is . Under the ''Engishiki'' classification system, ...

. The Nagasone family were blacksmiths and produced armor. Kotetsu would continue the family's tradition by becoming an armorer, but moved to

to pursue a career in swordmaking around the age of 50. Kotetsu's swords were known for their great strength and their ability to cut through helmets. However, Kotetsu's swords were often faked, and they were so well faked that even Kotetsu himself is said to have not been able to tell the difference. When presented with a fake on one occasion, he is reported to have said "The blade is mine but the signature is not." Records exist which state that Nagasone Kotetsu only forged thirty one swords bearing the name. There are however other records which directly dispute this, with the Nihontô Meikan showing 50 different mei or signatures for Nagasone Kotetsu. Additionally, there are Honomi records of sword polishers and master appraisers receiving Mumei or unsigned blades from Nagasone Kotetsu, and adding signature to them later after having completely substantiated the maker and provenance of the sword in question, increasing this count even further. This can also easily explain Kotetsu's comment above where he said - "The blade is mine, but the signature is not." However, the fact remains that Kotetsu has been often faked over the past 350+ years, and so both the signatures as well as the style and quality of the blade should be judged closely to determine accuracy.

Fake sword

Perhaps one of the most famed Kotetsu blades was a fake: that of

Kondō Isami was a Japanese swordsman and samurai of the late Edo period. He was the fourth generation master of Tennen Rishin-ryū and was famed for his role as commander of the Shinsengumi. Background He was born Miyagawa Katsugorō to a farmer Miyagawa ...

, the commander of the late Edo-era patrol force called

Shinsengumi The was a small secret police organization, elite group of swordsmen that was organized by commoners and low rank samurai, commissioned by the (military government) during Japan's Bakumatsu period (late Tokugawa shogunate) in 1863. It was ac ...

. However, this sword was not a Kotetsu, but instead a sword made by the foremost smith of that era (known in Japanese swordmaking history as the shinshin-to era), Minamoto Kiyomaro, and bearing a forged Kotetsu signature made by master signature-faker Hosoda Heijirō.

Name change

Nagasone Okisato took the name Kotetsu upon taking the

Buddhist Buddhism, also known as Buddhadharma and Dharmavinaya, is an Indian religion and List of philosophies, philosophical tradition based on Pre-sectarian Buddhism, teachings attributed to the Buddha, a wandering teacher who lived in the 6th or ...

tonsure in

, at Kan'eiji Temple, in the Ueno district. He was active in the Kantō Region for some time, as well as in Edo itself, passing away in 1678. Two of his most prominent students and successors were Nagasone Okinao and Nagasone Okihisa.

Popular uses

"Kotetsu" is used as a name for swords in various

anime is a Traditional animation, hand-drawn and computer animation, computer-generated animation originating from Japan. Outside Japan and in English, ''anime'' refers specifically to animation produced in Japan. However, , in Japan and in Ja ...

manga are comics or graphic novels originating from Japan. Most manga conform to a style developed in Japan in the late 19th century, and the form has a long history in earlier Japanese art. The term is used in Japan to refer to both comics ...

, and

video game A video game or computer game is an electronic game that involves interaction with a user interface or input device (such as a joystick, game controller, controller, computer keyboard, keyboard, or motion sensing device) to generate visual fe ...

series, such as

Vagabond Vagrancy is the condition of wandering homelessness without regular employment or income. Vagrants usually live in poverty and support themselves by travelling while engaging in begging, waste picker, scavenging, or petty theft. In Western ...

Rurouni Kenshin is a Japanese manga series written and illustrated by Nobuhiro Watsuki. The story begins in 1878, the 11th year of the Meiji era in Japan, and follows a former assassin of the Bakumatsu, known as Hitokiri Battosai. After his work against ...

, Kimetsu no Yaiba,

One Piece ''One Piece'' (stylized in all caps) is a Japanese manga series written and illustrated by Eiichiro Oda. It follows the adventures of Monkey D. Luffy and his crew, the Straw Hat Pirates, as he explores the Grand Line in search of the myt ...

and

Black Cat A black cat is a Cat, domestic cat with black fur. They may be a specific Purebred, breed, or a common domestic cat of no particular or mixed breed. Most black cats have golden iris (anatomy), irises due to their high melanin pigment content. Bl ...

. The '' Kōtetsu'' (formerly the Confederate warship CSS ''Stonewall'') was a Japanese navy ironclad in the

Boshin War The , sometimes known as the Japanese Revolution or Japanese Civil War, was a civil war in Japan fought from 1868 to 1869 between forces of the ruling Tokugawa shogunate and a coalition seeking to seize political power in the name of the Impe ...

Kotetsu II

Nagasone Okimasa, the adopted or biological son of Nagasone Okisato, is often called ''Kotetsu II''. He is also rated as the ''Saijo Ō Wazamono''.Nagasone Okimasa.
Touken World

References

Bibliography

*Yasu Kizu, ''Swordsmith Nagasone Kotetsu Okisato'', Hollywood: W.M. Hawley Publications, 1990. {{DEFAULTSORT:Nagasone, Kotetsu 1590s births 1678 deaths Japanese swordsmiths Japanese Buddhist clergy