Erected in the early thirteenth century on the site of a Viking settlement, Dublin Castle served for centuries as the headquarters of English, and later British, administration in Ireland. In 1922, following Ireland’s independence, Dublin Castle was handed over to the new Irish government. It is now a major government complex and a key tourist attraction.
The 100th year celebration, 16 January 2022, of the handing over of Dublin Castle by the British to the Free State was a very low key event but I decided that it might be a good idea to visit and photograph the memorial plaques.
Most of the current construction dates from the 18th century, though a castle has stood on the site since the days of King John, the first Lord of Ireland. The Castle served as the seat of English, then later British, government of Ireland under the Lordship of Ireland (1171–1541), the Kingdom of Ireland (1541–1800), and the United Kingdom of Great Britain and 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 complex.