William Marshal, 2nd Earl of Pembroke

Arms of William Marshal, 2nd Earl of Pembroke, drawn by Matthew Paris: Party per pale or and vert, a lion rampant gules. These arms were later adopted in 1269 in lieu of his own paternal arms by Roger Bigod, 5th Earl of Norfolk (1245-1266) on his inheritance of the office of Marshal of England from the Marshal family

William Marshal, 2nd Earl of Pembroke (French: Guillaume le Maréchal) (1190 – 6 April 1231) was a medieval English nobleman and was one of the sureties of Magna Carta. He fought during the First Barons' War and was present at the Battle of Lincoln (1217) alongside his father William Marshal, 1st Earl of Pembroke, who led the English troops in that battle. He commissioned the first biography of a medieval knight to be written, called L'Histoire de Guillaume le Mareschal, in honour of his father.