[1] Dunmoe Castle is located on the northwest bank of the Boyne, 4 km (2.5 mi) northeast of Navan.

[3] The castle was built for the D'Arcy family in the mid-15th century and marked the western edge of The Pale.

According to the Civil Survey (1654–6) Thomas Darcy owned the entire parish and on the premises there was ‘a Castle, a Church, a Mill, an Orchard and a fishing weare’.

During the Cromwellian conquest of Ireland in 1649 the Castle was fired upon from the south bank by passing troops on their way from Drogheda to Athboy, but avoided any real damage.

The ground floor is buried but was vaulted and had a loft and arrowslits on the south wall.