Battlefields›Siege of London: Cnut's Ditch and Boat-drag Past London Bridge, 1016
Early Medieval

Siege of London: Cnut's Ditch and Boat-drag Past London Bridge, 1016

1016
England
Era
Early Medieval
Battle Type
Siege
Location
England
Status
Unregistered
The Combatants

Who Fought

Defeated
London garrison
VS
Victor
Cnut
Forces involved

Not itemised for this specific engineering/siege action; Cnut's overall invasion fleet is variously given in sources as around 160-200 longships (chronicle accounts differ).

Outcome
Cnut's fleet dug a ditch on the south bank of the Thames and dragged their ships past London Bridge, then encircled the city with a trench, cutting off ingress and egress and making frequent assaults; London's defenders resisted and drove the Danes back from the walls, and the siege was lifted (temporarily) when Edmund Ironside's relief force approached, leading to the Battle of Brentford shortly after.
The Battle

History & Significance

Siege of London: Cnut's Ditch and Boat-drag Past London Bridge, 1016 was a siege of the Early Medieval period, fought in England in 1016. This engagement forms part of the broader pattern of conflict that shaped the political and military history of the UK during this era.

Confirmed battlefield location
The ground

The ground they fought on

The site of Siege of London: Cnut's Ditch and Boat-drag Past London Bridge, 1016 lies on Eocene claystone, bedrock that formed in the Eocene. The rock here is claystone.

Questions & Answers

Frequently Asked Questions

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Everything a full report reveals about Siege of London: Cnut's Ditch and Boat-drag Past London Bridge, 1016

This page covers Siege of London: Cnut's Ditch and Boat-drag Past London Bridge, 1016. A full Aubrey report for the area pulls together this battle alongside scheduled monuments and everything else the record holds within a few miles:

Overview
An interactive map of the location with every monument and battle plotted, and a plain-language history built only from what the record holds.
Monuments
The legally protected scheduled monuments around the location, each with its period, type and significance.
Battlefields
The battles and sieges fought on this ground, mapped and set on a timeline of the wider conflict.
Roman Britain
The Roman roads, forts and towns near here, and the Iron Age people who held the land before Rome arrived.
Domesday
The settlement's entry in the 1086 Domesday Book: who held it, what it was worth, and the people who worked the land.
Civil War
The Civil War fighting, garrisons and recorded militaria in this area, woven into the arc of 1642 to 1651.
Geology
The bedrock beneath the site, its age and rock type, reaching back hundreds of millions of years.
LiDAR
Laser-scanned terrain that reveals earthworks hidden under fields and woodland, with likely features flagged.
Local Names
What the street and field names around here actually mean, and the history buried inside them.
Historical Maps
Ordnance Survey maps from the 1800s, layered over the location as it stands today.
Literature
The books, county histories, charters and archives that mention this place, quoted with their sources.
Legal
The protected sites nearby and the metal-detecting, access and treasure laws that apply to this ground.
Spotlight
A deep dive into the most remarkable, lesser-known history of the place, traced back to the record.
Target Zones
For detectorists: the most promising ground to search nearby, ranked by confidence, with what to expect.
Timeline
The whole story of the location told era by era, from prehistory to the present day.
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Protected heritage nearby

Scheduled Monuments near Siege of London: Cnut's Ditch and Boat-drag Past London Bridge, 1016

Remains of Winchester Palace, Clink Street and waterfront
Remains of Winchester Palace, Clink Street and waterfront
Scheduled monument · ~0.1 mi

Remains of Winchester Palace, Clink Street and waterfront is a medieval palace complex located on the south bank of the Thames in Southwark, London. The site was the London residence of the Bishops of Winchester from the twelfth century onwards and served as an important episcopal administrative…

Photograph by Mike Peel (www.mikepeel.net). / CC BY-SA 4.0 / Wikimedia Commons
Fishmongers' Hall
Fishmongers' Hall
Scheduled monument · ~0.2 mi

Fishmongers' Hall is a Grade I listed building located in London Bridge, within the City of London. The present structure dates from 1827-1835 and was designed by architect Henry Roberts following the destruction of the medieval hall in the Great Fire of 1666. The building served as the headquart…

Stephen Richards / CC BY-SA 2.0 / Wikimedia Commons
Monument
Monument
Scheduled monument · ~0.2 mi

Monument is a ancient monument in Middlesex, England. The site is registered on the National Heritage List for England under entry 1002065. Without access to detailed scholarly records specific to this particular monument's excavation and dating, I can note that Middlesex contains numerous archae…

Eluveitie / CC BY-SA 3.0 / Wikimedia Commons
Watermen's Hall
Watermen's Hall
Scheduled monument · ~0.2 mi

Watermen's Hall is a Grade I listed building located in London, constructed in the seventeenth century as the headquarters of the Company of Watermen and Lightermen. The building, situated on the Upper Thames Street waterfront, dates from 1668 and was designed by Edward Jerman following the Great…

Henryrothery / CC BY-SA 4.0 / Wikimedia Commons
Roman hypocaust and building on site of Coal Exchange
Roman hypocaust and building on site of Coal Exchange
Scheduled monument · ~0.3 mi

I appreciate your request, but I must acknowledge that I have no reliable scholarly information in my training data about a hypocaust or Roman building at the Coal Exchange site in Middlesex with the specific list entry number 1005546. Rather than provide text that might be inaccurate or invented…

Carla Brain / CC BY-SA 2.0 / Wikimedia Commons
The Globe Theatre
The Globe Theatre
Scheduled monument · ~0.3 mi

I cannot locate reliable scholarly evidence for a monument called "The Globe Theatre" designated as an ancient monument in Surrey with the NHLE reference 1012806. The renowned Globe Theatre was located in Southwark, London (not Surrey), and was a playhouse of the Elizabethan and early Jacobean pe…

Another Believer / CC BY-SA 4.0 / Wikimedia Commons
Romano-British bath house and medieval remains at 11-15 Borough High Street
Scheduled monument · ~0.1 miles
The Roman riverside wall and wharves at Riverbank House
Scheduled monument · ~0.2 miles
More from this era

Other Early Medieval Battles

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Battle of Crayford (457)
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Battle of Aylesford
455
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Anglian Assault on Roman York (c.450-500 AD)
450
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In the same landscape

Battles near Siege of London: Cnut's Ditch and Boat-drag Past London Bridge, 1016

Destruction of Londinium
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Battle of Southwark
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Jack Cade - Skirmish at London Bridge
1450
~0.1 miles away
Alfred Recaptures London and Restores It to Mercia 886
886
~0.2 miles away
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