What type of surety was the Earl of Pembroke who participated in the battle at Lincoln castle in 1217?
William Marshal, 2nd Earl of Pembroke William Marshal, 2nd Earl of Pembroke (French:"Guillaume") (1190 – 6 April 1231) was a medieval English nobleman and was one of Magna Carta sureties. He fought during the First Barons' War and was present at the Battle of Lincoln (1217).
Alan of Galloway Alan of Galloway (born before 1199; died 1234), also known as Alan fitz Roland, was a leading thirteenth-century Scottish magnate. As the hereditary Lord of Galloway and Constable of Scotland, he was one of the most influential men in the Kingdom of Scotland and Irish Sea zone.