Merrion Castle facts for kids

Merrion Castle was a castle situated about 300m south of the present-day Merrion Gates, to the south of Dublin city centre. Built in the early fourteenth century, it was from the sixteenth century to the early eighteenth century the principal seat of the Fitzwilliam family, who later acquired the title Viscount Fitzwilliam. After the Fitzwiliams moved to Mount Merrion House in about 1710 the castle fell into ruin, and it was demolished in 1780. No trace of Merrion Castle survives today. It was located opposite Merrion Gates, on the site of St. Mary's Home and School for the Blind. Its location, and the modern site of St.Mary's, can be seen on historical maps.

Early history

The first mention of a castle at Merrion is in about 1334, when it was in the possession of Thomas Bagod, a descendant of that Sir Robert Bagod who had built Baggotrath Castle about 1280. In the late fourteenth century Merrion Castle was owned by Sir John Cruise, a leading diplomat and soldier. In the fifteenth century both castles came into the possession of the Fitzwilliam family, who over the tears became the most substantial landowners in Dublin; James Fitzwilliam, the Chief Baron of the Irish Exchequer, married Sir John Cruises's daughter. Until the late sixteenth century Baggotrath was the Fitzwilliams' favoured possession, for possession of which they fought a bitter private war with the Cornwalsh family in the 1440s. It was Sir Thomas Fitzwiliam, grandfather of the first Viscount, who in the reign of Elizabeth I made Merrion Castle the principal family residence.

Civil War and Restoration

During the English Civil War, possession of such a strong fortress close to Dublin was clearly of crucial importance to both sides in the conflict. The Fitzwilliams, who were staunch Royalists, installed a strong garrison; but in June 1642 the castle was betrayed to the Parliamentary side, and remained in Parliament's hands until the Restoration. The second Viscount, Oliver Fitzwilliam, later Earl of Tyrconnell, who had some influence with Oliver Cromwell's son Henry, pleaded for its return, but without success. Given the traditional loyalty of his family to the Stuart dynasty, he might well have expected its speedy recovery in 1660; but the bitter divisions in post-Restoration Ireland, which saw Tyrconnell accused by his enemies of being a supporter of Oliver Cromwell, caused a delay in the full restitution of his lands, and he did not recover Merrion until 1663.

Though it had suffered much damage during the military occupation, Merrion was still a substantial dwelling. For the purpose of the hearth tax in 1662-3 it was assessed at sixteen hearths, proving it to be one of the largest private dwellings in Dublin. Lord Tyrconnell in his last years did much to improve the castle, where he died in 1667. It remained the main family residence until 1710 when Richard FitzWilliam, 5th Viscount FitzWilliam began the building of Mount Merrion House.

Ruins of Merrion Castle

After 1710 the castle was entirely abandoned and it quickly fell into decay. By the late 1720s it seems to have been little more than a ruin, and the newspapers reported that the site was infested with large and savage rodents called marmonts. The "marmont" was almost certainly the brown rat, which is recorded in Ireland from 1722, a few years ahead of its first appearance in England.

Gabriel Beranger sketched the ruins around 1765. Austin Cooper surveyed them in May 1780, but on a second visit found the castle being demolished. The Topographical Dictionary of Ireland 1837 states that some ivy covered ruins of the castle still existed at that time.

Images for kids

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  Watercolour of Merrion Castle, painted by Gabriel Beranger in the mid to late 18th century