Dublin Castle

Dublin Castle (Irish: Caisleán Bhaile Átha Cliath) off Dame Street, Dublin, Ireland, was until 1922 the seat of the United Kingdom government's administration in Ireland, and is now a major Irish government complex. Most of it 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.

Dublin Castle fulfilled a number of roles through its history. Originally built as a defensive fortification for the Norman city of Dublin, it later evolved into a royal residence, resided in by the Lord Lieutenant of Ireland or Viceroy of Ireland, the representative of the monarch. The second in command in the Dublin Castle administration, the Chief Secretary for Ireland, also had his offices there. Over the years parliament and law courts met at the castle before moving to new purpose-built venues. It also served as a military garrison. "Castle Catholic" was a pejorative term for Catholics who were considered to be overly friendly with or supportive of the British administration.

Upon formation of the Free State in 1922, the castle assumed for a decade the role of the Four Courts on the Liffey quays which had been badly damaged during the Civil War.

It was decided in 1938 that the inauguration of the first President of Ireland, Douglas Hyde would take place in the castle, and the complex has been host to this ceremony ever since. The castle is also used for hosting official State visits as well as more informal foreign affairs engagements, State banquets, and Government policy launches, as well as acting as the central base for Ireland's hosting of the European Presidency approximately every 10 years.

Dublin Castle was first founded as a major defensive work by Meiler Fitzhenry on the orders of King John of England in 1204, some time after the Norman invasion of Ireland in 1169, when it was commanded that a castle be built with strong walls and good ditches for the defence of the city, the administration of justice, and the protection of the King's treasure. Largely complete by 1230, the castle was of typical Norman courtyard design, with a central square without a keep, bounded on all sides by tall defensive walls and protected at each corner by a circular tower. Sited to the south-east of Norman Dublin, the castle formed one corner of the outer perimeter of the city, using the River Poddle as a natural means of defence along two of its sides. The city wall directly abutted the castle's northeast Powder Tower, extending north and westwards around the city before rejoining the castle at its southwestern Bermingham Tower. In 1620 the English-born judge Luke Gernon was greatly impressed by the wall: "a huge and mighty wall, foursquare, and of incredible thickness".

The Poddle was diverted into the city through archways where the walls adjoined the castle, artificially flooding the moat of the fortress's city elevations. One of these archways and part of the wall survive buried underneath the 18th-century buildings, and are open to public inspection.

Through the Middle Ages the wooden buildings within the castle square evolved and changed, the most significant addition being the Great Hall built of stone and timber, variously used as Parliament house, court of law and banqueting hall. The building survived until 1673, when it was damaged by fire and demolished shortly afterwards. The Court of Castle Chamber, the Irish counterpart to the English Star Chamber, sat in Dublin Castle in a room which was specially built for it about 1570. The Castle sustained severe fire damage in 1684. Extensive rebuilding transformed it from medieval fortress to Georgian palace. No trace of medieval buildings remains above ground level today, with the exception of the great Record Tower (ca. 1228–1230); it is the sole surviving tower of the original fortification, its battlements an early 19th-century addition.
United Irishmen General Joseph Holt, a participant in the 1798 Rising, was incarcerated in the Bermingham Tower before being transported to New South Wales in 1799.

In 1884 officers at the Castle were at the centre of a sensational homosexual scandal incited by the Irish Nationalist politician William O'Brien through his newspaper United Ireland.

In 1907 the Irish Crown Jewels were stolen from the Castle. Suspicion fell upon the Officer of Arms, Sir Arthur Vicars, but rumours of his homosexuality and links to socially important gay men in London, may have compromised the investigation. The jewels have never been recovered.