| Country: | Wales |
| Welsh Name: | Castell Gwalchmai |
| Official Name: | Walwyn's Castle |
| Static Image: | Walwyn's Castle church - geograph.org.uk - 1542456.jpg |
| Coordinates: | 51.7591°N -5.0839°W |
| Cardiff Distance Mi: | 84.1 |
| Cardiff Distance Km: | 135.3 |
| London Distance Mi: | 213.2 |
| London Distance Km: | 343.1 |
| Unitary Wales: | Pembrokeshire |
| Community Wales: | Walwyn's Castle |
| Constituency Welsh Assembly: | Preseli Pembrokeshire |
| Constituency Westminster: | Preseli Pembrokeshire |
| Post Town: | Haverfordwest |
| Postcode District: | SA62 |
| Postcode Area: | SA |
| Os Grid Reference: | SM 8727 1121 |
| Population: | 361 |
Walwyn's Castle (Welsh: Castell Gwalchmai) is a village, parish and community in the county of Pembrokeshire, Wales, and is from Cardiff and from London.[1] [2] In 2011 the community's population was 361.[3]
The community of Walwyn's Castle consists of the parishes of Walwyn's Castle itself and the parishes of Hasguard and Robeston West.[4]
In 2011 the population of the community of Walwyn's Castle was 355 with 15.2 per cent able to speak Welsh.[5]
In his 12th century Gesta Regum Anglorum, William of Malmesbury claimed that the grave of Gawain (Latin: Walwen, Welsh: Gwalchmai) was found here around the end of the 11th century and that the castle mound covers the site.[6] [7]
A castle was built within an Iron Age Hill fort by the Normans. There is an historic rath overlooking Walwyn's Castle. A geophysical survey was carried out in 2011.
Walwyn's Castle was in the ancient hundred of Roose with its origins in the pre-Norman cantref of Rhôs. This and several other parishes fell within the mediaeval Barony of Walwyn's Castle, the caput of the Marcher Lord.[8]
The parish of Walwyn's Castle includes several scattered settlements.[9]
The earliest-known reference to Walwyn's Castle Church was 1291. The church was rebuilt around 1869 to 1878. Today the Church is in good repair with services held there every Sunday.
The nearby Baptist Chapel, Aenon, Sandy Hill, built 1877, has a cemetery. Gravestones reveal names linking to families from Walwyn and the local communities. The Chapel was internally renovated in 2020 and meets for worship on Sundays, and various midweek activities.
The village school closed in the late 1950s, converted to a village hall, and substantially renovated in 2004.