| Conflict: | Siege of Shigisan |
| Partof: | the Sengoku period |
| Date: | 1577 |
| Place: | Shigisan castle, Japan |
| Territory: | Shigisan falls to Oda Nobunaga |
| Result: | Oda victory |
| Combatant1: | forces of Oda Nobunaga |
| Combatant2: | Matsunaga clan |
| Commander1: | Oda Nobutada Oda Nagamasu Akechi Mitsuhide Hosokawa Fujitaka Mori Nagayoshi Tsutsui Junkei |
| Commander2: | Matsunaga Danjo Hisahide Matsunaga Kojirō |
In the history of Japan, the 1577 was one of many sieges during Oda Nobunaga's campaigns to consolidate his power in the Kansai area.
The castle was held by Matsunaga Danjo Hisahide and his son Kojirō, both of whom committed suicide upon their defeat.[1] Supposedly, following his father's seppuku, Kojirō leapt from the castle walls, with his father's head in his hand, and his sword through his own throat.
Hisahide, a master of tea ceremony is also said to have smashed his favorite tea bowl so that it would not fall into the hands of his enemies.[1]