William Marshal was the medieval knight and military leader known as the 1st Earl of Pembroke.
William Marshal rose from a relatively modest position to become one of the most powerful nobles in England. He served five English kings: Henry II, Richard I, John, and Henry III, while also serving the young Henry the Young King during his lifetime. His career included tournament fighting, diplomacy, military command, and royal administration.
Marshal supported King John during the baronial rebellion and helped negotiate the settlement that produced Magna Carta in 1215. After John died in 1216, Marshal became regent for the child Henry III. He defended the young king’s cause against rebel barons and a French invasion, helping preserve the English monarchy.
A biography commissioned by his family, the History of William Marshal, presents him as an exemplary knight. It is an important source for medieval chivalric culture, although it praises its subject and must be read critically. Marshal died in 1219 and was buried in London’s Temple Church.