Henry de Grey, 1st Baron Grey de Wilton was an English nobleman born around 1540. He was the son of Sir Henry Grey and Lady Mary Grey, and he became a prominent figure during the reign of Queen Elizabeth I. In 1603, he was granted the title of Baron Grey de Wilton, which marked his rise in the English peerage. As a military leader, Grey de Wilton served in various campaigns, including the Nine Years' War in Ireland. He was known for his loyalty to the crown and played a significant role in the governance of Ireland during his tenure. His contributions to military and political affairs were recognized throughout his life.