Humphrey de Bohun was a prominent English nobleman in the 13th century, born around 1276. He was the 4th Earl of Hereford and the 4th Earl of Essex, inheriting these titles from his father, Humphrey de Bohun, 3rd Earl of Hereford. Known for his military service, he played a significant role in the conflicts of his time, including the Barons' War. De Bohun was also a key figure in the political landscape of England, supporting King Edward I during his reign. He was involved in various campaigns, including those against the Scots, and was a staunch advocate for the rights of the nobility. His legacy continued through his descendants, who remained influential in English history.