According to some sources, Shakushain's death came when he accepted an invitation from Matsumae to parlay, as was a custom in Ainu culture, but was then poisoned by the samurai leaders.<ref>David Howell, "On the Peripheries of the Japanese Archipelago: Ryukyu and Hokkaido," in Howell (ed.), ''The New Cambridge History of Japan'' vol 2 (2024), 617.</ref> It is unclear whether the Matsumae lord killing Shakushain in this fashion was a betrayal of Ainu customs, or something which Ainu chiefs might expect could happen at such a parlay meeting. | According to some sources, Shakushain's death came when he accepted an invitation from Matsumae to parlay, as was a custom in Ainu culture, but was then poisoned by the samurai leaders.<ref>David Howell, "On the Peripheries of the Japanese Archipelago: Ryukyu and Hokkaido," in Howell (ed.), ''The New Cambridge History of Japan'' vol 2 (2024), 617.</ref> It is unclear whether the Matsumae lord killing Shakushain in this fashion was a betrayal of Ainu customs, or something which Ainu chiefs might expect could happen at such a parlay meeting. |