Lost Medieval Castle Discovered Hidden Within Victorian Building on College Campus
Professor identifies substantial portions of 13th-century Roebuck Castle concealed within a modern structure at University College Dublin.
A medieval castle, believed lost for centuries, has been discovered hidden in plain sight within a Victorian-era building on the University College Dublin (UCD) campus. Medieval archaeology professor Tadhg O’Keeffe identified substantial portions of the original Roebuck Castle surviving inside the university’s present-day structure.
The present-day building retained the name of its medieval predecessor, but it was long thought to contain little of the original castle. The initial Roebuck Castle fell into ruin by the 18th century and was later incorporated into a residence that underwent significant alterations, including a major Victorian renovation in 1874. UCD acquired the property in 1986.
Despite centuries of modifications, O’Keeffe estimates that 70 to 80% of the medieval structure remains intact, concealed beneath Victorian plaster. His investigation was prompted by studying 18th-century watercolors by artist Gabriel Beranger, which depicted the medieval castle before extensive redevelopment.
“It’s not obvious to the naked eye,” O’Keeffe stated, “but I specialize in medieval castle architecture, and I saw all the indications when I went in that the castle is still there.” Key indicators include unusually thick walls, a stone vault, and an arched stone roof. The gate tower is also discernible from the interior, though plastered over.
O’Keeffe further noted that the windows are splayed, a characteristic architectural feature indicative of a medieval origin. These clues suggest the original stonework is preserved beneath the modern facade.
Roebuck Castle is believed to have been constructed in the early 13th century, following the Norman invasion of Ireland. Historical records indicate that the castle was owned by individuals of notable status. One owner, during a portion of the Middle Ages, held a legal position equivalent to the chief justice of the Supreme Court in modern terms. It is also reputed that King James II briefly resided there in the late 17th century.