Dublin Castle Ireland (1800–1922). After the signing of the Anglo-Irish Treaty in December 1921, the complex was ceremonially handed over to the newly formed Provisional Government led by Michael Collins. It now hosts the inauguration of each President of Ireland, and various State receptions. The castle was built by the dark pool ("Dubh Linn") which gave Dublin its name. This pool lies on the lower course of the River Poddle before its confluence with the River Liffey; when the castle was built, the Liffey was much wider, and the castle was effectively defended by both rivers. The Poddle today runs under the
Beaumont, Dublin by the Church of the Holy Child on the old airport road. This church was blessed by Pope John Paul II as his motorcade passed by during his visit to Ireland in 1979. An all-girls school, Mercy Beaumont School, founded in 1957, is located beside the hospital. St. Fiachra's Junior and Senior Schools are also located near the hospital and the church, and St. Pauls Special School is also here. Beaumont, Dublin Beaumont is a northside suburb of Dublin city, Ireland, bordered by Donnycarney, Santry and Artane. It lies within the postal district of Dublin 9. The name is derived