A sword school of mind and form
Shingyōtō-ryū (心形刀流) is a school of Japanese swordsmanship founded in 1682 by Iba Hideaki, known as Iba Josuiken, who developed it from the earlier Honshin-tō-ryū. As its name suggests, it treats the form of the sword and the state of the mind as inseparable, and its curriculum extended beyond the single sword to two-sword methods, iai drawing, and a short glaive technique.
From the Renpeikan to the fall of Edo
The Iba family carried the school through the Edo period, and under a later head its Edo dōjō, the Renpeikan, became one of the leading training halls of the late shogunate. The main Iba line came to an end in the early twentieth century, but the tradition had already branched to students in the domains.
Shaping the mind and the sword in the same discipline.
The surviving Kameyama line
The line that survives today descends from a retainer of the Ise Kameyama domain who trained under the Iba house. It has been transmitted without a break at Kameyama, in what is now Mie Prefecture in Japan, where it is recognised as a designated intangible cultural property and preserved as a classical koryū.