William IX, Count of Poitiers
William was the first son of King Henry II of England and Duchess Eleanor of Aquitaine. He was born in Normandy on the same day that his father's rival, Eustace IV of Boulogne, died.
William either died aged 3 on 2 December 1156, or aged 2 in... Wikipedia
Born: August 17, 1153, Normandy, France
Died: 1156 (age 3 years), Wallingford Castle, Wallingford, United Kingdom
Great-grandparents: William IX, Duke of Aquitaine, Henry I of England, Philippa, Countess of Toulouse, and more
Parents: Eleanor of Aquitaine and Henry II of England
Grandparents: William X, Duke of Aquitaine, Empress Matilda, Geoffrey Plantagenet, Count of Anjou, and more
Burial: Reading Abbey, Berkshire