History of Dublin After the Anglo-Normans taking of Dublin in 1171, many of the city's Norse inhabitants left the old city, which was on the south side of the river Liffey and built their own settlement on the north side, known as Ostmantown or "Oxmantown". Dublin became the capital of the English Lordship of Ireland from 1171 onwards and was peopled extensively with settlers from England and Wales. The rural area around the city, as far north as Drogheda, also saw extensive English settlement. In the 14th century, this area was fortified against the increasingly assertive Native Irish – becoming known as The
Newcastle, South Dublin Newcastle, South Dublin Newcastle () is a village in south-west South Dublin, Ireland. It is also a civil parish in the barony of the same name. It was the location of the castle of the barony, which in historical and official documents is described as Newcastle-Lyons. The area is still primarily rural in nature. Newcastle-Lyons is located at the junction of the R120 and the R405 regional roads. It lies approximately 3 km north of the N7 at Rathcoole, 6 km south east of Celbridge, and 9 km west of Tallaght. The village lies west of Casement Aerodrome (Baldonnell), the