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
Waterville, Dublin Waterville, Dublin Waterville () is a modern housing development that forms a remote suburb of Dublin city, within Fingal, Ireland. The developments were built between 2002 - 2008 on the edge of the Abbotstown demense, on the boundary between Blanchardstown and Castleknock. The development lies within the Barony of Castleknock in the historic County Dublin. The area was developed by Granbrind Ltd on land acquired from the Eastern Health Board. The land was previously owned successively by the Barons of Castleknock, Baronets of Abbotstown and Barons Holmpatrick. Historically these lands formed the principal seat in the civil parish and barony