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
Swords, Dublin Swords, Dublin Swords () is the county town of Fingal and a satellite of Dublin, Ireland. One of the larger settlements of Greater Dublin, the town is the closest to Dublin Airport, and is home to one of the Dublin region's larger shopping centres, extensive other retail facilities, and a range of industries. Lying on the Ward River, it features a restored medieval castle, a holy well from which it takes its name, a round tower and a Norman tower, presumably built by the same Normans who constructed the castle. The name "Swords" is also applicable to a townland, to