Tozawa Masamori
戸沢政盛
Tozawa Masamori, portrait at Matsuoka Han School Shōjōkan
1st Daimyō of Matsuoka Domain
In office 1602–1622
Monarchs	Shōgun Tokugawa Ieyasu Tokugawa Hidetada
Preceded by	-none-
Succeeded by	Nakayama Nobuyoshi
1st Daimyō of Shinjō Domain
In office 1622–1648
Monarch	Shōgun Tokugawa Iemitsu
Preceded by	- none -
Succeeded by	Tozawa Masanobu
Personal details
Born	1585 Dewa Province, Japan
Died	March 16, 1648(1648-03-16) (aged 62–63)
Spouse(s)	Mamuro Gozen, daughter of Torii Mototada of Yahagi Domain
Relations	Father: Tozawa Moriyasu

Tozawa Masamori (戸沢政盛, 1585– March 16, 1648) was the 1st daimyō of Shinjō Domain in Dewa Province, Japan (part of modern-day Yamagata Prefecture). His courtesy title was Ukyō-no-kami, and his Court rank was Junior Fifth Rank, Lower Grade.

Biography

Tozawa Masamori was the eldest son of Tozawa Moriyasu, but as his mother was a peasant girl whom Moriyasu had met in a falconry hunt, he was not expected to inherit. Masamori's mother was subsequent married off to a yamabushi and Masamori was raised as a peasant. However, Moriyasu's death in 1590, followed by that of his uncle Tozawa Mitsumori in 1592, left the clan leaderless and to avoid the possibility of attainder, the clan's retainers tracked Masamori down, murdered his stepfather, and brought him before Toyotomi Hideyoshi as heir, with Mitsumori's widow as his adopted mother. He fought in the Battle of Sekigahara for the eastern side, and was subsequently awarded a 40,000 koku domain of Matsuoka Domain in Hitachi Province and this he became daimyō under the Tokugawa shogunate.

During the winter campaign at the Siege of Osaka he was assigned as castellan of Odawara Castle and during the summer campaign he was castellan of Edo Castle. For these services, Shōgun Tokugawa Ieyasu arranged a marriage between Tozawa Masamori and a daughter of Torii Mototada. Following the attainder of the Mogami clan, he accompanied Torii Tadamasa to Dewa Province and was subsequently assigned a portion of the former Mogami lands, which became Shinjō Domain (60,000 koku). The Tozawa clan remained at Shinjō until the Meiji restoration.

Heraldry

• banner: twelve black and white stripes
• great standard: three white umbrellas
• messenger's sashimono: a black horo with two flags
• ashigaru: red disc on blue
• lesser standard: gold horns above a red disc on blue
• sashimono: as for the ashigaru but with a plume

References

• The content of much of this article was derived from that of the corresponding article on Japanese Wikipedia.
• Abe, Takeshi (1990). 戦国人名事典. 新人物往来社. ISBN 978-4404017529.