
What is recorded here
Castell Aberlleiniog on the Isle of Anglesey is a medieval motte and bailey castle that later became a post-medieval fort. The site still shows castle earthworks and a Civil War fort, though no standing stone castle remains visible. It is a place where defence changed with time, and the ground still carries the shape of that change.
The National Monuments Record of Wales records Castell Aberlleiniog, Castle Earthworks and Civil War Fort as Motte and Bailey; Fort from the Medieval; Post Medieval period. The saved point comes from the official national record. Inclusion does not by itself mean that the public may enter the place.
Castell Aberlleiniog was built during the medieval period, likely by Norman settlers in the 12th or 13th century, and later modified during the English Civil War. It is remembered for its strategic military significance in both medieval and 17th-century conflicts in Wales.
The historic-place record does not grant public access. Check current conditions and ownership before entering land or a building.
Places near here
Castell AberlleiniogCastle · 7 yd
Aberlleiniog WoodlandWood · 37 yd
LleiniogHouse · 439 yd
Haulfre StablesStable · 619 yd
CornelynHouse · 738 yd
Penmon PrioryVisitor information · 1.2 mi
Penmon Priory, DovecoteDovecote · 1.3 mi
Coed NantWood · 1.5 mi
Llanfaes GateVisitor information · 1.9 mi
Castell Biwmares; Beaumaris Castle, BeaumarisCastle · 2.0 mi
Y Pen-saer MaenMemorial · 2.0 miOther information
Photo: Eric Jones · CC BY-SA 2.0