
Kamiichi
Château de Yuminoshō
Seigneur du château, chef du clan Dohi
→Lord of Yuminoshō Castle
Dohi Masashige (土肥政繁) is a Sengoku-period warlord and head of the Dohi clan. From his seat at Yuminoshō Castle in Kamiichi, the clan controlled the Shinkawa region in eastern Etchū Province. Initially vassals of Uesugi Kenshin, the Dohi switched sides several times between the Oda and the Uesugi after 1578. Masashige withstood repeated attacks by Sassa Narimasa between 1581 and 1583, with a surrender in 1582 followed by a renewed, victorious resistance. In 1583, a peace agreement between Hideyoshi, Sassa and Uesugi Kagekatsu led him to leave Etchū for Echigo, where he built Itoigawa Castle.
After the death of Uesugi Kenshin, the Dohi clan rallies to the Oda, then returns to Uesugi Kagekatsu.
Repels Sassa Narimasa's first assault on Yuminoshō.
Surrenders in the fourth month for lack of Uesugi reinforcements, then, after the Honnō-ji incident, resists a renewed siege in the eighth and ninth months.
After a peace agreement, leaves Etchū for Echigo, where he builds Itoigawa Castle.
Cette synthèse croise plusieurs sources pour documenter les lieux, événements et relations historiques.