St Lythans Ringwork
Has been described as a Rejected Timber Castle (Other/Unknown)
There are earthwork remains
| Name | St Lythans Ringwork |
| Alternative Names | Coednant Bran |
| Historic Country | Glamorgan |
| Modern Authority | Vale of Glamorgan |
| 1974 Authority | South Glamorgan |
| Community | Wenvoe |
A circular feature recorded from the air can be explained as a tree-ring. There are three other tree-rings on St Lythans Down, c 1km to the north-east, all lying c 250m from St Lythans House, on its west, north, and east sides. (Spurgeon 1999)
Not scheduled
Not Listed
The National Monument Record (Coflein) number(s)
County Historic Environment Record
| OS Map Grid Reference | ST102733 |
| Latitude | 51.452091217041 |
| Longitude | -3.29393005371094 |
| Eastings | 310200 |
| Northings | 173350 |