Imposingly situated above the tranquil Boyne between Navan and Slane stands Dunmoe Castle, home of the D'Arcy family from the 15th century. The castle was briefly attacked by Cromwell in 1649 but avoided damage in 1690 during the Battle of the Boyne, D'Arcy was however accused of treachery for not declaring his allegiance. The castle was destroyed by fire in the late 18th century.

Two sides of a four-storey castle which was square in shape with large rounded turrets at the four corners. The two lower storeys were vaulted. Although built in the style of the 13th century castles, it was probably not built till the 15th century. Cromwell is said to have fired on it from the opposite bank of the Boyne on his way from Drogheda to Athboy in 1649...