Tulaigh Álainn · Co. Louth
A small village above the Boyne where the Cistercians, the Williamites and the Townleys all left their stones.
Tullyallen - Tulaigh Álainn, 'beautiful hill' - sits six kilometres north-west of Drogheda above the north bank of the Boyne. A village of perhaps seven hundred and fifty people in the parish core: a supermarket, a pharmacy, a church, a GAA pitch, a single pub. You drive through it in two minutes if nothing's in front of you. You'd miss it entirely except that the three things that frame this loop of the river - Mellifont, the Battle of the Boyne site at Oldbridge, and Townley Hall demesne - are all inside the same parish.
Mellifont is the start of it. St Malachy founded the abbey in 1142 as Ireland's first Cistercian house, on land granted by Donough O'Carroll, King of Airgialla. At its peak it housed a hundred monks and three hundred lay brothers; the order kept the rule of work and silence on the Boyne until Henry VIII shut it in 1539. The lavabo - the octagonal washing-house in the cloister - is the photograph; the chapter house and the crypt are the rooms you stand in. OPW site, ten minutes from the village.
Six kilometres south of the village, on the bend of the Boyne at Oldbridge, William of Orange beat James II on 1 July 1690 (12 July new style). The OPW visitor centre at Oldbridge House interprets the battle in the restored 18th-century house; the battlefield itself is walkable, with cannons and a laser-projection model that gets used hard by the school groups. Behind the village, Townley Hall demesne - Francis Johnston's neoclassical house of 1794, sold by Trinity College Dublin in 2017 - surrounds the woodland walks of King William's Glen, where the Williamite cavalry forded the river.
Don't come for a checklist. Come for an hour at Mellifont with the Boyne running below the cloister, an hour at Oldbridge if 1690 means anything to you, a walk through King William's Glen and Townley Wood, and a pint in McDonnell's afterwards. Tullyallen is a base, not a destination; but you cannot do the Battle, the Abbey, and the demesne without coming through it.