Siamese invasion of Patani (1786)

Date1786

Location

Patani Sultanate (modern Patani, Thailand)

Result

Siamese victory

• Siam successfully captured the city of Patani
• The Sultanate of Patani was re-established as a Siamese vassal state
• Siam seized the “Seri Patani” cannon and brought it back to Bangkok

Siamese invasion of Patani (1786)
Part of Siamese Expansion in the Early Rattanakosin Era
Date 1786 Location Patani Sultanate (modern Patani, Thailand) Result Siamese victory Siam successfully captured the city of Patani The Sultanate of Patani was re-established as a Siamese vassal state Siam seized the “Seri Patani” cannon and brought it back to Bangkok
Belligerents
Rattanakosin Kingdom	Patani Kingdom
Commanders and leaders
Rama I (King Phutthayotfa Chulalok)	Sultan Muhammad †
Strength
Unknown	Unknown
Casualties and losses
Unknown	Very heavy, at least patani 4,000 captured[1]

The Siamese invasion of Patani occurred as part of the expansion and unification of the Siamese kingdom during the reign of King Buddha Yodfa Chulalok the Great (Rama I) of the Rattanakosin period^[2] Siam led an army to attack Pattani until it was defeated, with Prince Maha Sura Singhanat as the commander. Pattani lost its independence at this time. Siamese soldiers burned the palace and houses, including ^[3]seizing two important cannons, namely Seri Negeri and Seri Patani^[4], And around 4,000 people from Pattani who were taken prisoner of war boarded ships bound for Bangkok.^[5]