Henry, Earl of Lancaster (c. 1281–1345) was a prominent English nobleman and a key figure during the early 14th century. He was the son of Henry Plantagenet, 3rd Earl of Lancaster, and played a significant role in the political landscape of England. Henry was known for his loyalty to the crown and his involvement in various military campaigns, including the Scottish Wars. As a member of the Plantagenet family, Henry held substantial lands and influence. He was also a supporter of King Edward II and later became involved in the conflicts surrounding the king's reign. His legacy includes contributions to the development of the English nobility and governance.