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Dublin Castle - History Dublin Castle, Dublin 2, Ireland
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Chapter 3

Norman Dublin
Norman Dublin
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Norman Dublin circa 1275AD by Stephen Conlan.
See image of Viking Dublin in Chapter 2


The Normans were 'grandchildren' of the Vikings who had settled in north-west of France in the 9th Century and following the Battle of Hastings in 1066, conquered England. By 1100 they ruled southern Italy and were establishing the Crusader States in Palestine.

Dermot McMurragh, King of Leinster, was ejected by the new High King of Ireland, Rory O'Connor and fled to the court of King Henry II in Aquitaine. There he received royal protection and permission to recruit mercenaries. It was perfect timing as Henry Nicholas Breakspear, son of an English Cistercian monk, had become Pope Adrian IV and gave papal approval for a conquering crusade of 'heathen' Ireland.

The Anglo-Norman invasion began with the landing at Baginbun, Co. Wexford in 1169. 'At Baginbun Ireland was lost and won'. Neither the Irish nor the Vikings could match nor withstand the Norman's advanced military technology of chain mail clad heavy cavalry, backed by Welsh longbows - equipment previously unknown in Ireland. Wexford was taken and the next year they force marched through the 'impenetrable' Wicklow Mountains and arrived at the gates of Dublin. They attacked Dame Gate (at the present day junction outside Palace Street Gate). A second attack by shock troops at the Christchurch end of town proved decisive. 'The Vikings were slaughtered in their citadel' - and so Dublin became a Norman settlement.

King Rory O'Connor laid siege on the town for two months. The position of the Norman defenders was perilous when Strongbow led a surprise sortie and scattered O'Connor's forces, at the site of present day Phoenix Park. Tiernan O'Rourke, Prince of Breifne, attacked Dublin three times in 1171. First his son was killed and then he was killed in battle. It would be almost three and a half centuries before Dublin would sustain such assault again - the next would be that of Silken Thomas in 1534.

The Vikings were forced out and settled in Oastmantown (Norse Town), now Oxmanstown, on the north side of the Liffey. King Henry II arrived in September 1171, in order to keep his adventurers in check, to assert his rule and to receive the submission of Irish Bishops and Chieftains. One of Valdre's ceiling paintings in St. Patrick's Hall commemorates the submission of Irish Chieftains to Henry. He also 'granted, to his men of Bristol (England), his city of Dublin to be inhabited, together with all the liberties and free customs they had at Bristol and throughout his entire land'.

The Normans strengthened the Norse walls, widened them to 1.5m and raised them to 5.6m high. They normally consolidated each territorial gain with a castle. It can be assumed that their first castle in Dublin was a motte and bailey - a huge steep earthen mound with wooden tower on top and palisade enclosure and deep ditch at the base - on the present Dublin Castle site. Archaeological evidence in the Bermingham Tower area, showed that there was a wooden and stone castle on this site in the 1180's.

On the 30th August 1204, King John of England commanded the erection of a (larger) strong castle with strong walls and good ditches, for the defence of the city, administration of justice and safe custody of treasure. The construction of Dublin Castle was completed by 1230 and Henry de Londres, Justiciar and Archbishop of Dublin, is credited with this major engineering achievement. The Great Courtyard (the Upper Castle Yard) of today corresponds closely with that fortification.

For a while, Dublin had sustained economic growth and the population, including suburbs, may have reached 10,000. However, the Norman townspeople were vulnerable to attacks by the Irish Clans and fear of such violence was ever present. The O'Byrnes and the O'Tooles, made frequent incursions from their strongholds in the Dublin and Wicklow Mountains. The Castle treasury became depleted as demands were made of the Justiciar to finance military campaigns in Wales and Scotland. The neglect and near bankruptcy of the administration prompted an Irish resurgence.

The fragile and precarious nature of the conquest was evident when Edward the Bruce, brother of Robert - King of Scotland, landed with an army in 1315, to set up a united Celtic Kingdom. He was joined by many Irish Chieftains and crowned King of Ireland. At the battle of Ardscull (Co. Kildare) he defeated the army of Justiciar Edmund Butler. The Dubliners 'broke the bridge of Dublin', demolished a number of buildings and used the stone to strengthen the town defences. Lacking a siege train, Bruce could not press his advantage and so, Dublin and the royal administration was saved.

Thirty years later (1348) a far more deadly enemy hit Dublin. The Bubonic Plague, known as the 'Black Death', had a deadly effect on the confined crowded town of Dublin, where the woodened framed, plastered, houses were two or three stories high and where a citizen could walk from one side of town to the other in less than nine minutes. The plague thrived in these conditions and some contemporary writers hailed it as 'the end of the world'. It left a base of infection in the town that was to surface for decades to come.

In 1394, King Richard II came with a great army and many Irish Chieftains submitted to him at his residence in Dublin Castle. Irish Kingship differed completely from the English model of direct inheritance by eldest son. An Irish King was elected by his people and if he submitted, could be and often was, deposed and the position given to the 'best man for the job' - who was not necessarily from his immediate family. Richard's temporary success could only have been maintained by a sustained effort, for which the means were not available. His second military expedition of 1399 cost him his crown. While he was in Ireland, Henry Bollingbrook, of the opposing House of Lancaster, returned from exile and rallied support. He was crowned Henry IV in Westminster Abbey after Richard was murdered, at the age of 33, at the Tower of London.

This caused the English dynastic quarrel that later burst into the 30 year, 'War of the Roses', between the Houses of Lancaster and York. During the 15th Century, England was marked by a succession of wars and revolts and Ireland was 'not on anyone's agenda'. The 100 Years War was reopened with France, and the English armies won a series of victories including the famous Battle of Agincourt. However, they were soon undermined by the campaigns of Joan of Arc and within a generation, all the conquests were lost.

Meanwhile, the existence of the Irish colonial outpost became even more precarious and starved of resources, it shrank rapidly, until the Dublin Government was effective only in the 'four obedient counties of the Pale' - i.e. Dublin, Louth, Kildare and Meath. That situation was to change dramatically, with the accession of the Tudor dynasty to the English Crown.

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