Scheduled MonumentsScotlandThreave Castle

Threave Castle

Scotland
HES SM90301
Nation
Scotland
Boundary

Scheduled area

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Overview

History & significance

Threave Castle is a late medieval stronghold situated on an island in the River Dee near Castle Douglas in Kirkcudbrightshire. The castle was constructed in the fourteenth century, likely begun around 1369, by Archibald the Grim, Lord of Galloway, and represents a substantial stone keep surrounded by later defensive works including a curtain wall and artillery fortifications. The site served as a significant power base for the Black Douglas family during the medieval period and demonstrates the military architecture and strategic importance of the region during the Wars of Scottish Independence and subsequent dynastic conflicts. The castle's prominent position on an island in the river, combined with its robust stone construction and later modifications, reflects its role as both a defensive stronghold and a symbol of aristocratic authority in south-west Scotland.

Threave Castle is a scheduled monument protected by Historic Environment Scotland under reference SM90301. View the official record →

About this monument

Questions & answers

What is Threave Castle?

Threave Castle is a late medieval stronghold situated on an island in the River Dee near Castle Douglas in Kirkcudbrightshire. It is designated a Scheduled Ancient Monument by Historic Environment Scotland under reference SM90301.

Who is responsible for protecting Threave Castle?

Threave Castle is a Scheduled Ancient Monument, legally protected by Historic Environment Scotland — the body responsible for designating and safeguarding heritage sites in Scotland. The official designation reference is SM90301.

What other scheduled monuments are near Threave Castle?

Several scheduled monuments lie within 10 km, including Fort, Meikle Wood Hill (0.6 km), Castle Earthworks,enclosure 500m SSW of Mains of Greenlaw (1.3 km), Ernespie, remains of stone circle 200m E of Erne Hill, Castle Douglas (3.6 km).

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Everything a full report reveals about Threave Castle

This page is just one thread. A full Aubrey report pulls together 14 strands of Threave Castle's history, each drawn from the record and mapped to the exact spot:

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.
Stat Accounts
The parish Statistical Accounts of the 1790s and 1830s, describing life, work and population here.
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.
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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Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.

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The ground beneath

The bedrock under Threave Castle

Threave Castle stands on Hawick Group, bedrock that formed in the Wenlock. The rock here is wacke.