Battle of Duyon River

Battle of Duyon River
Part of Acehnese–Portuguese conflicts

1635 Portuguese watercolour sketch of the 1629 Acehnese attack on Malacca
DateJune–December 1629
Location
Result Portuguese victory
Belligerents
Portuguese Empire
Malay warriors
Sultanate of Aceh
Commanders and leaders
Nuno Álvares Botelho
António Pinto da Fonseca
Laksamana (?) (POW)
Marraja 
Strength
1,260 Portuguese soldiers
400 auxiliaries
4 brigantines
28 galleys
2,000 Pahang warriors
60 vessels of Pahang
236 ships
19,000 men
Casualties and losses
60 dead All ships captured or destroyed
All men killed or captured
170 heavy artillery pieces captured
the Laksamana captured

The Battle of Duyon River was a naval engagement between the Portuguese forces commanded by Nuno Álvares Botelho, who is renowned in Portugal as one of the last great commanders of Portuguese India, and the forces of the Sultanate of Aceh, which were led by the Laksamana.

The relatively modest Portuguese fleet achieved an absolute victory over the Ottoman-allied Aceh in that not a single ship or man of the invading force sent to conquer Malacca returned to their country. The Sultanate of Perak, a vassal of the Sultanate of Aceh, defected to the Portuguese side after the battle.