St. Audoen's Church, Dublin (Church of Ireland) St. Audoen's Church, Dublin (Church of Ireland) St Audoen's Church () is the church of the parish of Saint Audoen in the Church of Ireland, located south of the River Liffey at Cornmarket in Dublin, Ireland. This was close to the centre of the medieval city. The parish is in the Diocese of Dublin and Glendalough. St Audoen's is the oldest parish church in Dublin and still used as such. There is a Roman Catholic church of the same name adjacent to it. The church is named after St Ouen (or Audoen) of Rouen (Normandy), a saint who lived in
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