naval engagement, early modern

Battle of Formoso River

Name: Battle of Formoso River
Location: Malaysia

Battle of Formoso River was a naval engagement fought in 1615 in what is now Malaysia. Its exact site is not recorded; the atlas places it at its recorded location. It was part of Acehnese–Portuguese conflicts, which ran from 1519 to 1639. The recorded result: Portuguese victory.

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Fought1615

WhereMalaysia7.000N, 100.000E, placed at the location, approximate

OutcomePortuguese victory

Belligerents24px|border Portuguese EmpireagainstAceh Sultanate

Casualties and losses1 galleon, 1 half-galley, 100 dead, 30 POWs.and20,000 men, 200 POWs.

Part ofAcehnese–Portuguese conflicts1519 to 1639

Where it sits in Acehnese–Portuguese conflicts

3 placed engagements of Acehnese–Portuguese conflicts in time order; taller ticks are more widely documented. Each tick is a link.

Record

Date	1615 (year precision) to 1615
Place	Malaysia 7.000N, 100.000E
Kind	Naval engagement, early modern
Strength	4 galleons; 6 half-galleys; 10 jáleas	300 – 500 vessels; 100 galleys; 150 ghurabs.; 250 junks, lancharas, calaluzes.; 30,000, 40,000 or 60,000 men
Casualties and losses	1 galleon, 1 half-galley, 100 dead, 30 POWs.	20,000 men, 200 POWs.
Commanders	Iskandar Muda

Placed at its recorded location; the exact site is not recorded. with the nearest other engagements in the atlas. Present-day coastlines, rivers and borders; towns from Natural Earth.

Nearest engagements

Battle of Jitra 1941, 94 km SE
Siege of Patani 1632, 139 km E
Battle of Gurun 1941, 142 km S
Action of 11 January 1944 1944, 175 km S
Battle of Penang 1914, 178 km S

In the same war

Before: Battle of Aceh 1528
After: Battle of Duyon River 1629
All 3 engagements of Acehnese–Portuguese conflicts

Elsewhere in 1615

Battle of Formoso River is one of 1,470 engagements of the 17th century in the atlas and one of 45 in present-day Malaysia.

Sources

Identity, coordinates, dates and the war from Wikidata Q120142816, released under CC0. Result, belligerents, commanders, strength and casualties from the infobox of the English Wikipedia article Battle of Formoso River, revision 1370440847, read 2026-11-14, licensed CC BY-SA 4.0; the article's text is not reproduced here. Present-day country and state from Natural Earth. Dates before 1582 follow the Julian calendar as recorded.