What Is the Bloodiest Castle in Scotland?

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Home to Scotland’s most feared Castle, the Scottish Borders have more to tell… find out the Secrets of the Scottish Borders here!

A fortress of power, peril, and a queen’s unforgettable ride through the Borders.

In the lonely hills of Liddesdale in the Scottish Borders stands a ruin so stark and formidable that it once earned the title “the guardhouse of the bloodiest valley in Britain.” That place is Hermitage Castle—a towering stone stronghold whose real history is even more fearsome than the local legends it inspired.

Strength of Liddesdale

Built on a raised platform above Hermitage Water, the castle was known as “the strength of Liddesdale.” For most of its 400-year lifespan, Hermitage stood as the military key to controlling the Scottish Middle March, a fiercely contested stretch of land along the English border.

The current structure dates from around 1360, when Sir Hugh de Dacre, an English lord, began work on the massive stone fortress we see today. His successor, William, 1st Earl of Douglas, one of the most powerful nobles in Scotland, drastically expanded and fortified the castle—transforming it into an imposing seat of power. Earlier, a de Soulis residence had existed on or near the site as far back as the 1240s, but Hermitage as we know it began in the late 14th century.

Throughout the 1400s and 1500s, the castle changed hands repeatedly and was at the heart of countless disputes between Scots and English, lords and reivers, and even between rival noble families. It was later adapted for the age of gunpowder with thick walls punctured by gun loops and a massive western earthwork defence.

Mary, Queen of Scots and Her Near-Fatal Journey

In October 1566, Hermitage became part of a legendary royal moment. James Hepburn, 4th Earl of Bothwell, was wounded in a skirmish with Border reivers—cattle raiders common in the region. On hearing of his injury, Mary, Queen of Scots, rode 25 miles from Jedburgh across rough, boggy terrain to visit him at Hermitage.

Her return journey proved nearly fatal. Her horse stumbled and she was thrown into a bog. The queen fell gravely ill and remained bedridden in Jedburgh for over a week. Her recovery was uncertain, and it’s said she was lucky to survive.

👉 Read more about Mary’s castles and legends
👉  Explore other royal sites like Urquhart Castle When you’re ready to plan your visit to Scotland, our Scotland trip planning guide has everything you need.

A Romantic Ruin Preserved

Hermitage Castle lost its strategic purpose in 1603, when the crowns of England and Scotland were united under Mary’s son, James VI and I. Abandoned by its noble owners, the castle gradually decayed. But in the 1800s, the Duke of Buccleuch and Queensberry preserved the ruin, inspired by a growing spirit of Romanticism and the writings of Sir Walter Scott.

Today, Hermitage Castle is managed by Historic Environment Scotland and is open seasonally. Despite its violent past, it’s also a haven for wildlife. Look out for wildflowers along the waterbanks and even ospreys overhead in spring and summer.

📍 Near Newcastleton, Scottish Borders
👉 Why are so many Scottish castles in ruins?

Want to step into Scotland’s darker past? Hermitage Castle doesn’t just tell stories—it remembers them.👉 Want to explore more of Scotland’s blood-soaked legends? 

Home to Scotland’s most feared Castle, the Scottish Borders have more to tell… find out the Secrets of the Scottish Borders here!

Download our free Scotland Travel Guide (PDF)

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Secure Your Dream Scottish Experience Before It’s Gone!

Planning a trip to Scotland? Don’t let sold-out tours or packed attractions dampen your adventure. Iconic experiences like exploring Edinburgh Castle, cruising along Loch Ness, or wandering through the mystical Isle of Skye often fill up fast—especially during peak travel seasons.

Booking in advance guarantees your place and ensures you can fully immerse yourself in the rich culture and breathtaking scenery without stress or disappointment. You’ll also free up time to explore Scotland's hidden gems and savour those authentic moments that make your trip truly special.

Make the most of your journey—start planning today and secure those must-do experiences before they’re gone!