Castles / GB / Wales
Castell Dolbadarn
Which definitions does it satisfy?
This dataset does not record whether something “is a castle”. It records a verdict against each named definition, with the reasoning that produced it.
| Definition | Verdict | Basis |
|---|---|---|
| Fortified residence | yes | Built by Llywelyn ap Iorwerth, Prince of Gwynedd — a stone curtain wall enclosing the summit with a hall inside and a large round keep whose first-floor doorway was defended by a portcullis; the report's own definition calls it 'a defended residence or stronghold'. |
| Enclosure fortification | unassessed | No source consulted so far speaks to this definition. Unassessed is not the same as no. |
| State fortification | unassessed | No source consulted so far speaks to this definition. Unassessed is not the same as no. |
| Palatial seat | unassessed | No source consulted so far speaks to this definition. Unassessed is not the same as no. |
| Revival and folly | unassessed | No source consulted so far speaks to this definition. Unassessed is not the same as no. |
| Popularly a castle | unassessed | No source consulted so far speaks to this definition. Unassessed is not the same as no. |
Facts
| Tradition | european medieval |
|---|---|
| Location | Llanberis, Gwynedd, Wales, GB |
| Built | Medieval |
| Confidence | medium |
| First recorded | 2026-07-21 |
| Last updated | 2026-07-22 |
In the registers
Where this structure appears in official inventories. This is what turns an individual record into evidence about a count.
- Cof Cymru — National Historic Assets of Wales —
CN066· Scheduled Monument — SiteType: Castle · entry
Location
Approximate. © OpenStreetMap contributors.
Notes
Band assessed from Cadw's full scheduled-monument report (CN066). fortified_residence yes — Llywelyn ap Iorwerth's princely castle with a stone curtain, hall and portcullis-defended round keep. Other bands omitted as unassessed: the report evidences no palace conversion, folly construction, popular usage, enclosure type or state-military tenure.
Sources
- Scheduled Monument Full Report — Castell Dolbadarn — Cadw, 2026-07-22
Cadw scheduled-monument full report (CN066); consulted in full for the band assessment.
Signals
Raw per-source observations behind this record (2):
sig-20260721-cadw-cn066,
sig-20260722-report-cn066
Record file · dataset licensed CC BY 4.0 — see provenance.