Ancient Monuments

History on the Ground

This site is entirely user-supported. See how you can help.

Castell Dinas Bran

A Scheduled Monument in Llangollen, Denbighshire (Sir Ddinbych)

More Photos »
Approximate Location Map
Large Map »

If Google Street View is available, the image is from the best available vantage point looking, if possible, towards the location of the monument. Where it is not available, the satellite view is shown instead.


Latitude: 52.979 / 52°58'44"N

Longitude: -3.1582 / 3°9'29"W

OS Eastings: 322330

OS Northings: 343037

OS Grid: SJ223430

Mapcode National: GBR 6Z.J7BS

Mapcode Global: WH784.GDB1

Entry Name: Castell Dinas Bran

Scheduled Date:

Source: Cadw

Source ID: 2300

Cadw Legacy ID: DE021

Schedule Class: Defence

Category: Castle

Period: Medieval

County: Denbighshire (Sir Ddinbych)

Community: Llangollen

Traditional County: Denbighshire


The monument comprises the remains of a later prehistoric (probably Iron Age) hillfort, constructed on the summit of a steep isolated hill where the Dee Valley is joined by the Horseshoe Pass from the north. The hillfort is univallate, with a probable entrance in the southwest. A number of possible hut sites are visible in the undulating interior of the hillfort. A medieval stone-built castle was later constructed during the 1260s by the lords of Powys Fadog, in the northwest corner of the hillfort. A rock-cut ditch surrounds the castle in the south and the east. The south and west sides of the keep are well preserved. The curtain wall survives intermittently, with remains of a typically Welsh apsidal tower in the middle of the south side. Traces of buildings in the west probably represent workshops, accommodation and stabling. The arched windows of the great hall or chapel survive to the east of the apsidal tower.

The monument is of national importance for its potential to enhance our knowledge of later prehistoric, and medieval defensive organisation and settlement. The site forms an important element within the wider later prehistoric and medieval context and within the surrounding landscape. The site is well preserved and retains considerable archaeological potential. There is a strong probability of the presence of evidence relating to chronology, building techniques and functional detail.

The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive.

Source: Cadw

Other nearby scheduled monuments is an independent online resource and is not associated with any government department. All government data published here is used under licence. Please do not contact for any queries related to any individual ancient or schedued monument, planning permission related to scheduled monuments or the scheduling process itself. is a Good Stuff website.