Sukenao Katana

Sukenao was born in Omi Takagi, his common name is Magodayu, and it is said, that he entered the Mon of Echizen no kami Sukehiro and later became the husband of his younger sister. He lived in Osaka Soya – cho. Sukehiro II, was summoned to Osaka Castle in 1666 to serve as master swordsmith for the Daimyo Aoyama no Kami, the Hanji of the castle. It was from this time that his techniques and the refinement of his work´s rapidly progressed. This is significant because it is believed, that Sukenao joined him at the castle. This is indicated by the fact that, in Enpo 3, Sukenao first used the surname "Tsuda". It was not seen for the next 7 years.

After Sukehiro's death in Tenwa 2 (1682), he began the use of 'tsuda' once again. He also changed the style of his kanji from Kaku (square), to maru (rounded), as did Sukehiro! He worked actively as head of the Tsuda school and was the actual successor of "Tsuda Sukehiro".

It is believed that Sukenao died in 1693 at the age of 54 after a very prolific career.