Richard Marshal, Earl of Pembroke, was defeated by knights loyal to King Henry III of England at the Battle of the Curragh in County Kildare, Ireland. Richard Marshal, 3rd Earl of Pembroke: Richard Marshal, 3rd Earl of Pembroke, was the son of William Marshal, 1st Earl of Pembroke and brother of William Marshal, 2nd Earl of Pembroke, whom he succeeded to the Earldom of Pembroke and Lord Marshal of England upon his brother's death on 6 April 1231. April 1, 1234. Wiki link