| Siege of Portsmouth | |||||||
|---|---|---|---|---|---|---|---|
| Part of the First English Civil War | |||||||
| |||||||
| Belligerents | |||||||
 Royalists |
 Parliamentarians | ||||||
| Commanders and leaders | |||||||
|
Lord Goring | |||||||
| Strength | |||||||
|
500 1 ship |
400-800 2+ cannons 7 ships | ||||||
| Casualties and losses | |||||||
|
Unknown 1 ship captured | Unknown | ||||||
The siege of Portsmouth was the siege of a Royalist garrison in Portsmouth by a Parliamentarian force conducted in the early part of the First English Civil War. The siege resulted in Portsmouth falling to Parliament after a little under a month of conflict.