Henry, Earl of Northumberland (c. 1446–1489) was a prominent English nobleman during the late 15th century. He was a member of the Percy family, one of the most powerful families in England, and held significant influence in the northern regions. His title was inherited from his father, Henry Percy, and he played a key role in the political landscape of the time, particularly during the conflicts of the Wars of the Roses. Henry was known for his loyalty to the Lancastrian cause, supporting King Henry VI against the Yorkists. His involvement in various battles and political intrigues led to fluctuating fortunes, including periods of imprisonment and rebellion. Ultimately, his life was marked by the turbulent power struggles of the English nobility during this era.