Atlas of Battles

siege, early modern

Siege of Portsmouth

Siege of Portsmouth was a siege conducted on 10 August 1642 at Portsmouth, in what is now United Kingdom; it lasted 28 days. It was part of the English Civil War, which ran from 1642 to 1651. The recorded result: Parliamentarian victory. Recorded strength: 500; 1 ship against 400–800; 2+ cannons; 7 ships.

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Fought10 August 1642lasted 28 days
WherePortsmouth, United Kingdom50.806N, 1.087W
OutcomeParliamentarian victory
BelligerentsRoyalistsagainstborder|22px Parliamentarians
Casualties and lossesUnknown; 1 ship capturedandUnknown
Part ofEnglish Civil War1642 to 1651

Where it sits in the English Civil War

Siege of Portsmouth, 1642Battle of Kings Norton, 1642Siege of Chichester, 1642First Battle of Middlewich, 1643Battle of Ripple Field, 1643Battle of Sourton Down, 1643Battle of Roundway Down, 1643Siege of Basing House, 1643Battle of Alton, 1643Battle of Boldon Hill, 1644Relief of Newark, 1644Battle of Cheriton, 1644Siege of York, 1644Bolton Massacre, 1644Battle of Cropredy Bridge, 1644Battle of Marston Moor, 1644Battle of Ormskirk, 1644Battle of Weymouth, 1645Battle of Naseby, 1645Siege of Bristol, 1645Battle of Rowton Heath, 1645Battle of Stow-on-the-Wold, 1646Protestant Revolution, 168916421689Siege of Portsmouth, 1642
23 placed engagements of the English Civil War in time order; taller ticks are more widely documented. Each tick is a link.

Record

Date10 August 1642
to 7 September 1642
PlacePortsmouth, United Kingdom
50.806N, 1.087W
KindSiege, early modern
Strength500; 1 ship400–800; 2+ cannons; 7 ships
Casualties and lossesUnknown; 1 ship capturedUnknown
Commanders
Siege of PortsmouthSiege of PortsmouthBattle of the SolentSiege of ChichesterBattle of BonchurchBattle of CheritonRout of WinchesterBattle of the SolentBattle of BonchurchBattle of CheritonRout of WinchesterCardiffLutonOxfordBathCherbourgDieppeDoverSouthend-on-Sea100 km50.806N, 1.087W
The recorded site, with the nearest other engagements in the atlas. Present-day coastlines, rivers and borders; towns from Natural Earth.

Nearest engagements

In the same war

Elsewhere in 1642

Siege of Portsmouth is one of 1,470 engagements of the 17th century in the atlas and one of 695 in present-day United Kingdom.

Sources

Identity, coordinates, dates and the war from Wikidata Q7510327, released under CC0. Result, belligerents, commanders, strength and casualties from the infobox of the English Wikipedia article Siege of Portsmouth, revision 1370744555, 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.