INTERACTIVE BATTLE
The Fall of Oyama Gobo
Tenshō 8 · Oyama Gobo, Kaga Province (now Kanazawa Castle Park, Kanazawa, Ishikawa)
After Nobunaga's peace with the Ishiyama Hongan-ji, Sakuma Morimasa, serving under Shibata Katsuie, took Oyama Gobo, the headquarters of the Kaga Ikkō-ikki. The fall of its nearly century-old center brought Kaga under effective Oda control.
Background
The Kaga Ikkō-ikki had effectively ruled Kaga Province since the Bunmei era (1470s). Oyama Gobo (Kanazawa Gobo) was founded in 1546 as a Hongan-ji stronghold and served as the ikki's center ever since. When Nobunaga made peace with the Ishiyama Hongan-ji in 1580, the Kaga ikki lost its backing and became a target for the Oda's Hokuriku army.
Outcome
The Oda Hokuriku army took and destroyed Oyama Gobo. Sakuma Morimasa then built a castle on the site and became its first lord as Kanazawa Castle. Resistance continued, however, among the Yamanouchi-sōshō in the Hakusan foothills at Torigoe and Futokoro castles.
Course of the battle
1 1580
Oyama Gobo falls
After Nobunaga's peace with the Ishiyama Hongan-ji, Sakuma Morimasa, serving under Shibata Katsuie, took Oyama Gobo, headquarters of the Kaga Ikkō-ikki. He then built a castle on the site and became its first lord.
Takes Oyama Gobo and becomes first lord of Kanazawa
Directs the invasion of Kaga at the head of the Hokuriku army
Sources14·Certainty: High
Historical significance
The loss of the Kaga ikki's political center brought the province under effective Oda control. Maeda Toshiie would later rule this land, but he did not receive Kaga until 1583, after the Battle of Shizugatake; at this point he was still lord of Fuchū in Echizen.
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Key figures
織田氏
2
Commander of the Hokuriku army
Led the Hokuriku army from his base at Kita-no-shō in Echizen, and directed the invasion of Kaga and the attack on Oyama Gobo.
Sources1·Certainty: High
Led the attack on Oyama Gobo; first lord of Kanazawa Castle
Shibata Katsuie's nephew. He led the front line in the Kaga campaign and became the first lord of the castle built on the site of Oyama Gobo after its fall.
Sources1·Certainty: High
Other events of 1580
Notes on the data
The exact date is not specified in the public records available (Ishikawa Prefecture, Hakusan City), so only the year is recorded. Maeda Toshiie was the lord of Echizen-Fuchu Castle at this time, and no sources confirming his participation in the invasion of Kaga are available, so he is not included among the participants.
Sources consulted
- 石川県「金沢城の歴史」（金沢城公園）
- 白山市「史跡鳥越城跡附二曲城跡」
- 石川県「七尾城跡・鳥越城跡附二曲城跡」（県指定文化財解説）
- 城郭マスタ（shiro.geojson）
The numbers in the text refer to the list above. Certainty indicates how far a statement is supported by the cited sources; it does not refer to the precision of the coordinates or the dating.
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