In 1204, King John of England commanded the erection of a large stone castle in Dublin on the site of an earlier Viking fortification. Completed around 1230 under Archbishop Henry of London, Dublin Castle became the administrative and ceremonial heart of English rule in Ireland. For over seven centuries until 1922, it served as the seat of British governance, symbolizing the enduring colonial presence in the country.

Dublin Castle appears as a potent symbol of colonial authority in Irish poetry, from the aisling (vision) poems of the 18th century that envisioned its fall, to the writings of W.B. Yeats and James Joyce, who referenced it as a center of British power. Its brooding presence influenced the nationalist imagination, shaping the themes of resistance and cultural identity that permeate Irish verse.