Atrocities were subsequently committed by all sides. When Murrough O'Brien, the Earl of Inchiquin and Parliamentarian commander in Cork, took Cashel in 1647, he slaughtered the garrison and Catholic clergy there (including Theobald Stapleton), earning the nickname "Murrough of the Burnings". Inchiquin switched allegiances in 1648, becoming a commander of the Royalist forces. After such battles as Dungans Hill and Scarrifholis, English Parliamentarian forces executed thousands of their Irish Catholic prisoners. Similarly, when the Confederate Catholic general Thomas Preston took Maynooth in 1647, he hanged its Catholic defenders as apostates.