Sakuma Morimasa

Sakuma Morimasa (from Riding image of Sakuma Morimasa held by Kenkun Jinja, Kyoto)

Sakuma Morimasa (佐久間 守正, 1554 – July 1, 1583) was the son of Sakuma Moritsugu, cousin of Sakuma Nobumori, a prominent Oda retainer to Oda Nobuhide and Oda Nobunaga. After several campaigns in which he had fought, he was given the nickname oni-genba which literally means "Demon Genba", Genba being his middle name.

Morimasa was born in what is now Shōwa-ku, Nagoya (situated in contemporary Aichi District, Owari Province), He was a retainer of Shibata Katsuie and one of his top generals in many of his campaigns. Morimasa was given the former Ikko Sect fortress Oyama Gobo in the Kaga prefecture by Oda Nobunaga; the fortress was subsequently named Oyama Castle in 1580 but went on to become Kanazawa Castle.

After the betrayal of Akechi Mitsuhide which led to the death of both Oda Nobunaga and his heir Oda Nobutada, Morimasa sided with Shibata Katsuie over making Oda Nobutaka (the third son of Nobunaga) as heir to the Oda clan whereas Hashiba Hideyoshi (later Toyotomi Hideyoshi) supported Lord Sanboshi. Sanboshi was the heir to Oda Nobutada and was still an infant at that time. This argument led to the split of the Oda clan retainers into the two main factions led by Shibata Katsuie and Hashiba Hideyoshi. Armies of the two factions eventually came to war.

Battle of Shizugatake[]

Sakuma Morimasa (from Shizugadake Kassen Zu Byōbu)

In 1583, Morimasa led an offensive force against Takayama Ukon in Iwasakiyama. Morimasa then proceeded against Shibata Katsuie's orders, killing Nakagawa Kiyohide in the early stages of the battle of Shizugatake. However, He ignoring Shibata Katsuie orders to fall back and led to his defeat as Toyotomi Hideyoshi's forces approached the next morning. Morimasa was captured and beheaded.^[1]

The charge by Morimasa was the spark necessary for the battle of Shizugatake where Hideyoshi's troops were able to suppress any resistance led by Maeda Toshiie and prevented the support of Sassa Narimasa and Takigawa Kazumasu.

In all, Hideyoshi's troops swelled to 120,000 whereas Shibata Katsuie's troops had only reached 25,000. This eventually forced Shibata Katsuie to commit seppuku along with his wife Lady Oichi (younger sister of Nobunaga) following the betrayal of Maeda Toshiie.

References[]

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