was a samurai commander during Japan's

Sengoku period The was the period in History of Japan, Japanese history in which civil wars and social upheavals took place almost continuously in the 15th and 16th centuries. The Kyōtoku incident (1454), Ōnin War (1467), or (1493) are generally chosen as th ...

, who served

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 ...

. He fought in the 1570

Battle of Anegawa The Sengoku period (30 July 1570) occurred near Lake Biwa in Ōmi Province, Japan, between the allied forces of Oda Nobunaga and Tokugawa Ieyasu, against the combined forces of the Azai and Asakura clans. It is notable as the first battle t ...

against Asai clan and

Asakura clan The is a Japanese samurai kin group.Edmond Papinot, Papinot, Jacques Edmond Joseph. (1906). ''Dictionnaire d'histoire et de géographie du Japon''; Papinot, (2003)"Asakura", ''Nobiliare du Japon'', p. 3 DF 7 of 80/nowiki> retrieved 2013-5-4. ...

. He also fought in the 1573 Siege of Noda Castle, in which he attempted to defend Noda castle against

Takeda Shingen was daimyō, daimyo of Kai Province during the Sengoku period of Japan. Known as "the Tiger of Kai", he was one of the most powerful daimyo of the late Sengoku period, and credited with exceptional military prestige. Shingen was based in a p ...

. It is unclear whether Sadamichi is the same person as Suganuma Sadamitsu (1542–1604), who served the

Imagawa was a Japanese samurai clan that claimed descent from the Seiwa Genji by way of the Kawachi Genji. It was a branch of the Minamoto clan by the Ashikaga clan. Origins Ashikaga Kuniuji, grandson of Ashikaga Yoshiuji, established himself in t ...

and Tokugawa.

References

Samurai Japanese military engineers {{samurai-stub