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).
Haverfordwest Castle Haverfordwest Castle (Welsh: "Castell Hwlffordd" ) is a castle located in the town centre at Haverfordwest, Pembrokeshire, south Wales, located in a naturally defensive position at the end of a strong, isolated ridge. The castle was established during Norman times in 1120 but much of the architecture remaining today is dated to 1290. For centuries the castle was an English stronghold.