of Cashel In 1275 Le Brun, like the rest of the Dublin administration, became involved in a bitter quarrel with the formidable Archbishop of Cashel, David Mac Cerbaill (or MacCarwell). The actual issues - the building of a prison in Cashel, followed by a dispute over who should have charge of it - seems trivial enough to modern eyes, but the Archbishop, then as throughout his career, showed himself to be an ambitious, quarrelsome and high-handed man, who in his 35 years as Archbishop of Cashel clashed with almost every other leading Irish figure. He took grave offence at the suggestion that he should not have exclusive possession of the prison, arguing that Crown control of the gaol was prejudicial to his rights, and fuelled the controversy by excommunicating his opponents. The outraged Le Brun wrote to Robert Burnell, the Lord Chancellor of England, complaining of the Archbishop's conduct in the strongest terms. The matter dragged on for several years, and the Archbishop was successful in obtaining control of the gaol, but in 1282 Le Brun was found to be blameless, and in recompense, the English Crown ordered that he receive either a prebend or some other benefice. He died a few months later. He was active till close to the end of his life, travelling to Clonmel and Kilmallock to hear pleas. Roebuck Castle and the Le Brun family Fromund bought Roebuck Castle, in the south of County Dublin, in 1261. It is likely that the purchase was a bad bargain since he was rumoured to be heavily in debt shortly before his death. Roebuck passed to Nigel le Brun, who seems to have been Fromund's nephew. Nigel and his wife Amicia also acquired Knocktopher Castle in County Kilkenny. Nigel was living in 1309. Sir Fromund le Brun, probably Nigel's son, received a royal pardon in 1346 for all acts of outlawry committed by him, in consideration of his good services to the Crown. The Le Brun family remained at Roebuck until the late fifteenth century, when it passed by marriage to Robert Barnewall, 1st Baron Trimlestown, who married Elizabeth, daughter of Christopher le Brun, the last male representative of the family. It is now part of the campus of University College Dublin. Fromund also held lands at Tankardstown in County Meath, which he later granted to Theobald Butler. In 1270 the Lord Edward granted him the castle of