Lifespan: 15xx to 16xx
Rank: bushō, daimyō
Title: Director of the Imperial Palace Keepers’ Bureau, Governor of Echigo
Domain: Tanabae (Kii Province)
Father: Sugiwaka Mushin
Siblings: Sister (wife of Niwa Nagahide and mother of Tōdō Takayoshi), sister (wife of Jinbō Sukeshige), sister (wife of Hirohashi Fusamitsu)
Sugiwaka Ujimune served as a bushō and daimyō during the Azuchi-Momoyama period.
Ujimune was born as the eldest son of Sugiwaka Mushin (Echigo-no-kami), the head of the Kumano navy.
Ujimune had the title of Director of the Imperial Palace Keepers’ Bureau. He had the common name of Densaburō. His sisters included the wife of Niwa Nagahide (and the mother of Tōdō Takayoshi), the wife of Jinbō Sukeshige, and the wife of Hirohashi Fusamitsu.
During the Bunroku era (1592 to 1595), he inherited the headship of the clan and governed a fief of 19,000 koku from Uenoyama Castle in Tanabe in Kii Province. Ujimune, along with his father, Horiuchi Ujiyoshi and others from the navy, participated in the Bunroku Campaign on the Korean Peninsula. From the time of the cessation of hostilities until the Keichō Campaign, Ujimune, together with Kuwayama Kazuharu and Kuwayama Sadaharu, guarded a Japanese-built castle on Kadoku Island near Busan.
In 1600, at the Battle of Sekigahara, Ujimune and his father joined the Western Army. In the seventh month, he defended the Tamatsukuri entrance to Ōsaka Castle. In the ninth month, he participated in the Siege of Ōtsu Castle, but, after receiving news of the loss by the Western Army in the main battle, he surrendered. Upon orders of Tokugawa Ieyasu, Ujimune joined in an attack on Shingū Castle, and, after the fall of the castle, he was stationed there for a while and waited to receive recognition of his rights to his landholdings, but, in the end, Asano Yukinaga was granted control of Kii Province while the Sugiwaka were removed from their position. As a result, Ujimune absconded and his whereabouts thereafter were unknown.