Originally, the school was called Shingan-ryû. Tozawa Obitô created this ryu from the teachings of Yagyû Gorôemon, son of Yagyû Muneyoshi.
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The heir to the founder was Takahisa Masabito Kanetsugu from Sendai. While on his musha shugyô, he met Yagyû Munenori and became his student in Yagyû Shinkage-ryû.
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He received the school's menkyo kaiden and went back to Sendai where he Formed the new Yagyû Shingan-ryû.
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== References ==
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Bugei Ryûha Daijiten by Watatani Kiyoshi & Yamada Chushi, ed. Tokyo copy Shuppan, 1969.