Historical eventSeptember 111649

Cromwellian conquest of Ireland

Cromwellian conquest of Ireland: Oliver Cromwell's New Model Army ended the Siege of Drogheda, took over the town and massacred its garrison.

Everything on September 11Original source

In context

When
Saturday, September 11 1649377 years ago
Category
Historical eventA dated happening — a battle, treaty, launch, discovery, disaster or decision — recorded on this calendar day.
Era
17th century · 1640s
Recorded from
Wikipedia “On this day” feed

The Gregorian calendar was in use in Catholic Europe from 1582, but Britain and its colonies kept the Julian calendar until 14 September 1752 — sources from those places may date this event 10–11 days earlier.

At a glance

Dates: From 1649.

What happened

Cromwellian conquest of Ireland: Oliver Cromwell's New Model Army ended the Siege of Drogheda, took over the town and massacred its garrison.

September 11 through the years

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Also in 1649

  • January 30Charles I of EnglandKing Charles I, who was defeated in both the First and the Second English Civil Wars, was beheaded for high treason in front of the Banqu…

Everything we record for 1649 →

Sources

Cite this page

“Cromwellian conquest of Ireland”, What's On This Date, https://whatsonthisdate.com/app/event/cromwellian-conquest-of-ireland-1649-september-11, accessed October 24, 2026.

Cite the underlying source as well — the source links above go to the record this entry is adapted from.

Questions about this entry

When did Cromwellian conquest of Ireland happen?

September 11 1649 — 377 years ago, on a Saturday.

Where does this text come from?

Wikipedia “On this day” feed. Summaries are short adaptations that link back to the source, not reprints.

How do I cite this page?

Use the ready-made citation near the sources at the bottom of the page, and follow the source link to cite the underlying record as well.

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