Castles / GB / Wales
Dyserth Castle
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 | Assessed from Cadw full report FL130. Active defence: a west-facing gatehouse flanked by one round and one polygonal tower, two large polygonal towers facing north, and inner/outer wards defined by rock-cut ditches and banks on a towering limestone rock. Residence: a domestic range opposite the north towers "presumed to be a hall and chambers". A royal castle established by Henry III in 1241 (a royal lord is still a lord). Both halves met, though most of the inner ward was later quarried away. |
| 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 | Dyserth, Denbighshire, 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 —
FL130· Scheduled Monument — SiteType: Castle · entry
Location
Approximate. © OpenStreetMap contributors.
Notes
Upgraded to assessed against Cadw full report FL130 (sig-20260722-report-fl130). The report is substantial and describes a gatehouse, flanking towers, rock-cut ditches and a domestic range (hall and chambers) of a royal castle begun by Henry III in 1241 and destroyed by Llywelyn ap Grufudd in 1263, supporting fortified_residence: yes (a royal lord is still a lord). The report treats it as elite medieval military architecture with domestic practices — a fortified royal residence, not a post-1500 state artillery work — so state_fortification is not invoked. Other bands (palatial_seat, revival_folly, enclosure_fortification, popular_castle) OMITTED — the report does not speak to them. Confidence medium.
Sources
- Scheduled Monument Full Report — Dyserth Castle — Cadw, 2026-07-22
Cadw's full scheduled-monument report (FL130); read in full and assessed against the bands.
Signals
Raw per-source observations behind this record (2):
sig-20260721-cadw-fl130,
sig-20260722-report-fl130
Record file · dataset licensed CC BY 4.0 — see provenance.