Discovery of Robeeck Castle’s Hidden Medieval Walls
In November 2013, during works on the Belfield campus of University College Dublin (UCD), medieval walls belonging to Robeeck Castle were uncovered beneath layers of plaster. Constructed in the early 13th century, this fortress once guarded one of the main routes leading into medieval Dublin. Over the centuries, the castle underwent numerous renovations before falling into ruin by the 18th century. Notably, King James II sought refuge within its walls in 1689 after his deposition.
Historical Context and Archaeological Insights
In 1790, Lord Trimleston transformed the decayed castle into a countryside residence. The final significant refurbishment took place in 1874, giving the building its distinctive Victorian Gothic style. A valuable visual record of the castle’s condition during the 18th century is preserved in a watercolor painting by artist Gabriel Beranger, circa 1765, which depicts the structure as partially ruined. Professor Tadgh O’Keeffe from UCD’s School of Archaeology confirmed that the inner courtyard of the current building aligns with that of the original medieval castle.
Professor O’Keeffe emphasized that UCD now possesses the oldest standing structure found across all university campuses in Ireland. Rather than demolishing the medieval castle, later builders constructed around it, preserving its core.
“As expected, the painting captures the main form of the building, but fortunately, it also shows subtle details that are crucial clues for understanding the castle’s architectural history,” he explained.
Pinpointing the exact date of the castle’s foundation will require further archaeological investigation. Meanwhile, archaeologists have discovered over 600 dwellings within the Bruscestown Ringfort site in County Wicklow, eastern Ireland. This represents the largest concentration of prehistoric settlement found in Britain or Ireland. More than 500 platforms lie between the inner and outer defensive banks of the ringfort, demonstrating a well-organized community rather than scattered farmsteads.
“Time has relentlessly eroded many medieval castles across South Dublin. Lost buildings mean lost chapters of history, leaving gaps in our collective understanding,” Professor O’Keeffe remarked.
The exposure of Robeeck Castle’s medieval walls marks a significant milestone in exploring the historical and cultural heritage of the region.
This remarkable find at UCD highlights the critical role archaeological research plays in uncovering Ireland’s past and reveals how modern structures can conceal layers of history. Beyond enriching the university campus, the discovery serves as a powerful reminder of the importance of preserving historical landmarks and their contexts. It may also inspire further archaeological endeavors in the area, opening new avenues for studying Ireland’s rich historical narrative.