The Nine Castles of the Knuckle

The Liminal Space Between Summer and ... A Spooky and Serendipitous Week

The Nine Castles of the Knuckle

Inverallochy Castle

I walked across the stubbly field to Inverallochy Castle at the weekend. It’s one of the nine castles of the knuckle, a term coined by historian William Douglas Simpson. It refers to nine ancient castles built along the rocky (knuckle-like) coast of Buchan in NE Scotland. I’ve been to most of them, so here we go!

Close-up of Inverallochy, a Comyn family castle, dating from 1504:

Apparently there used to be a stone above the door stating that the land around the castle “was obtained by Jordan Comyn for building the abbey of Deer.” Deer Abbey and its older site are some miles away – I wrote about the Abbey here – so that’s a little odd. Maybe ancient plans changed, or the inscription was incorrect. The stone disappeared in the 18th century.

Medieval re enactor and ‘Man at Arms’ Andrew Spratt made this GIF showing how the castle used to look:

Inverallochy Castle, one of the nine ‘castles of the knuckle’ here in NE Scotland @AilishSinclair post turned into a reconstruction mock-up. #InverallochyCastle #ScottishCastles #HistoryRebuilt pic.twitter.com/OXGrK38wJW
— Andrew Spratt (@andrewsp2009) August 26, 2025

Rattray and Lonmay

We’re going to head north from Inverallochy. There were two knuckle castles south of here – Lonmay and Rattray – but they have crumbled away to nothing. I have written about the ancient chapel at Rattray, and its pirate steps, here.

Cairnbulg Castle

Next up the coast is Cairnbulg Castle, one of the oldest buildings in Aberdeenshire still to be inhabited by the family that built it. It’s home to Lady Saltoun, Chief of the name and arms of Fraser.

The Wine Tower

Not actually a castle, but one of the nine anyway, the Wine Tower in Fraserburgh is a post-reformation Catholic chapel. See my post here

Kinnaird Castle

And right next to the wine tower is Kinnaird Castle with a lighthouse built within. I’ve written about it here (ghost story included). It’s part of the wonderful Museum of Scottish Lighthouses.

Pittulie Castle

On we go to Pittulie Castle, thought to date from 1596, the year that my novel The Mermaid and the Bear begins, so I have an extra fondness for this castle. In the 18th century the owner was friends with the lovely Lord Pitsligo who lived next door.

Pitsligo Castle

This castle started out as a keep (the high part on the right above) in 1424 but expanded greatly over the centuries. See my post on it here.

Dundarg Castle

Sadly, I have no photos of the last of the nine castles of the knuckle, Dundarg, as it’s on private land right by a house. It sits on a promontory within the ramparts of an Iron Age fort. It’s referenced from the 10th century, though only the gatehouse remains today.

The Mermaid and the Bear

Lost in ancient woodlands and caught up in whispers of witchcraft, Isobell must navigate danger to reclaim her life. Can she find her happily ever after?

Set in a fictional castle in Aberdeenshire, Ailish Sinclair’s debut novel, THE MERMAID AND THE BEAR, blends an often overlooked period of history, the Scottish witchcraft accusations, in particular the 1597 Aberdeen witchcraft panic, with a love story.

Amazon UK

Amazon Worldwide

“A delight from end to end…” Undiscovered Scotland