The Ligor–Patani War (1629–1630) was part of the long-standing conflict between the Ayutthaya Kingdom (Siam) and the strong port city of Patani, which sought independence. In 1629–1630, King Songtham of Ayutthaya dispatched an army led by Okya Senaphimuk (Yamada Nagamasa), an influential Japanese samurai in the Ayutthayan court, to suppress Patani. The campaign was primarily launched from the base in Nakhon Si Thammarat
Key outcomes Yamada Nagamasa forces were defeated by Patani, led by Raja Ungu (the queen of Patani at the time). Yamada Nagamasa was severely wounded during the fighting. Upon returning to Nakhon Si Thammarat for recovery, he was poisoned, leading to his death. This event marked the end of significant Japanese influence in Southern Siam and temporarily preserved Patani's independence before future conflicts.
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