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 (County Dublin barony) Newcastle (County Dublin barony) Newcastle () is a feudal title of nobility and one of the baronies of Ireland. It was constituted as part of the old county of Dublin. Today, it lies in the modern county of South Dublin. At the heart of the barony is the civil parish of the same name - Newcastle - which is one of eleven civil parishes in the barony. The ruins of the eponymous castle, also known as Newcastle-Lyons, are located in the townland of Newcastle South. The town with the biggest population in the barony is Lucan. It is one of