was a samurai commander during Japan's
Sengoku period
The was a period in Japanese history of near-constant civil war and social upheaval from 1467 to 1615.
The Sengoku period was initiated by the Ōnin War in 1467 which collapsed the feudal system of Japan under the Ashikaga shogunate. Variou ...
, who served
Tokugawa Ieyasu
was the founder and first ''shōgun'' of the Tokugawa Shogunate of Japan, which ruled Japan from 1603 until the Meiji Restoration in 1868. He was one of the three "Great Unifiers" of Japan, along with his former lord Oda Nobunaga and fel ...
.
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 ...
against
Asai clan
The , also rendered as Asai, was a Japanese clan during the Sengoku period.
History
The Azai was a line of ''daimyōs'' (feudal lords) seated at Odani Castle in northeastern Ōmi Province, located within present day Nagahama, Shiga Prefecture. ...
and
.
He also fought in the 1573 Siege of Noda Castle, in which he attempted to defend Noda castle">Siege of Noda Castle">DF 7 of 80/nowiki> retrieved 2013-5-4.
History
Th ...
.
He also fought in the 1573 Siege of Noda Castle, in which he attempted to defend Noda castle against Takeda Shingen.
It is unclear whether Sadamichi is the same person as Suganuma Sadamitsu (1542–1604), who served the Imagawa clan, Imagawa and Tokugawa clan, Tokugawa.